Protecting People and the EnvironmentUNITED STATES NUCLEAR REGULATORY COMMISSION
ACCESSION #: 9805190074
The Boeing Company
P.O. Box 3707
Seattle, WA 98124-2207
April 30, 1998
G-1151-SJA-98-213
Document Control Desk
United States Nuclear Regulatory Commission
Washington, D.C. 20555
Reference: a) Boeing Letter G-1151-RSO-92-365 dated August 31,
1992; R. S. Orr to the NRC Operations Center
BOEING
b) NRC Letter Docket No. 99901227 dated August 12, 1992;
L. J. Norrholm to R. S. Orr; Subject: Response to 10
CFR 21 Inquiry
Dear Sir or Madam:
In accordance with the reference correspondence and 10 CFR 21, Boeing is
sending the NRC the attached error notice(s) received from our former
software suppliers. Because of unknown current addresses, the following
former customers were not notified:
Reactor Controls, Inc.
Echo Energy Consultants, Inc.
Nuclear Applications and Systems Analysis Company (Japan)
Nuclear Power Services
Error notices have been sent to our other former customers.
Very truly yours,
Sandra J. Andrews
Nuclear Administrator
Phone: (425) 865-6248
FAX: (425) 865-4851
Mail Stop: 7A-33, or
e-mail: Sandra.J.Andrews@Boeing.com
Enclosure(s): ANSYS Class 3 Error Reports 98-01 thru 98-12 ;95-07 R2,
97-50 R1 and 98-01 R1.
ANSYS QA Notices QA 98-01 thru QA98-06
ANSYS Support Coordinator Bulletins SCB 98-01
and SCB 98-02
ANSYS [REGISTERED COPY] ANSYS, Inc.
Southpointe
275 Technology Drive
Canonsburg, PA 15317 APR 29 1998
April 13, 1998
Dear Class3 Error Recipient:
Enclosed you will find ANSYS Class3 Error Reports 98-01 through 98-12 as
well as 95-07 R2, 97-50 R1 and 98-01 R1, ANSYS QA Notices QA98-01 through
QA98-06, and ANSYS Support Coordinator Bulletins SCB 98-01 and SCB 98-02.
These reports have been issued in the first quarter of 1998.
Also included with this Class3 Error mailing are two separate letters.
One letter announces the availability of our Interim Product Releases.
The second letter discusses the Hardware and System Support which will be
available with the release of ANSYS 5.5.
Revised Class3 Error Reports
o Class3 Error Report 95-07 R2 has been issued to clarify the version
of ANSYSPro/ENGINEER the error was corrected in and give the
sequence of commands for the workaround.
o Class3 Error Report 97-50 R1 has been issued to give a more complete
description of the VMESH error.
o Class3 Error Report 98-01 R1 has been issued to expand the scope of
the error. This error affects all target nodes, not just boundary
conditions at target nodes.
QA Notices
o QA Notices QA98-01 and QA98-02 have been issued to inform users of
possible inaccurate results when using second-order triangular
thermal elements and 3D 10-Node Tetrahedral Thermal Solid and
Tetrahedral Coupled-Field Solid elements. However, these elements
behave as documented in our Elements Manual.
o QA Notice QA98-03 discusses the operation of the GET command for
large deflection analysis.
o QA Notice QA98-04 has been issued to inform users of a possible
input error for dialog box settings of keyopts greater than 9.
o QA Notice QA98-05 has been issued to alert users that Revision 5.0
of ANSYS and all prior releases will not run after December 31,
1999.
o QA Notice QA98-06 has been issued to alert users of an ANSYS 5.4
Interim Release (UP19980310).
Support Coordinator Bulletins
o ANSYS Support Coordinator Bulletin SCB 98-01 has been issued to
inform users of the existence of an undocumented form of the MP
command with Lab = EMIS and prevent potential confusion or misuse
when generating a radiation matrix in AUX 12.
o ANSYS Support Coordinator Bulletin SCB 98-02 has been issued to
inform users of an occasional and apparently random error occurring
on the Sun version of ANSYS Release 5.4 which causes ANSYS to run
indefinitely.
I would like to remind you of the various ways that you can receive
Class3 error information. Quarterly, Class3 errors will be delivered by
mail to the ANSYS Support Coordinator listed on your ANSYS license
agreement. Please notify your ASD of any personnel or address changes
that should be incorporated into our records for your ANSYS agreement in
order to avoid any interruptions in receiving your Class3 Error Report
mailings.
For users desiring access to Class3 errors on a more timely basis you can
be added to our email distribution list. To register for email
notification of reports, simply send an email request including your
email address, company name/address and ANSYS agreement number to
bonny.podolek@ansys.com. If you are a current subscriber to email
distribution, please keep us informed of any changes in your email
address by emailing bonny.podolek@ansys.com. After two failed
transmissions of reports, your name will be removed from the distribution
list.
Finally, Class3 Errors and QA Notices are posted on ANSYS's Internet
HomePage. The address is http://www.ansys.com. They are located in the
ANSYS Zones sections of the HomePage under Customer. The username to
enter this area is "customer" and the password is "ain1fm" (ANSYS is
number 1 for me).
For your convenience, also enclosed with this mailing you will find ANSYS
Class3 Error Summary Reports sorted both by error number and keyword for
Release 5.3 and Release 5.4.
Sincerely,
William J. Bryan
Quality Assurance Manager
ANSYS Release Identifier Description
ANSYS release identifiers consist of a major release level, a minor
release level, a correction and a build date. An example of how this is
constructed is shown below:
5.3 UP030797 <--- build date (form - UPmmddyy)
major release level -- -- minor release level
Major release level changes indicate that new features have been added to
the program and that some level of program architecture change and/or
file structure may have occurred. Minor release level changes also
indicate that new features have been added to the program, but files are
upwardly compatible. All known error fixes are include in both minor and
major releases. The build date corresponds to the date the program was
created. Special versions may be provided to circumvent an error and are
identified by build date. Special versions am not general releases to
all ANSYS licensees, since they typically represent error corrections
occurring only on one system, a subset of our customers who have specific
graphics devices, etc.
When a release identifier on a Class3 Error Report does not include a
build date, all build dates for the indicated release level are included.
When a release identifier for FIRST INCORRECT VERSION explicitly includes
a build date, the release level with the indicated build date as well as
all earlier build dates for that release level are affected. When a
release identifier for CORRECTED IN explicitly includes a build date, the
release level with the indicated build date as well as all subsequent
build dates contain the correction.
For example, a Class3 Error Report with "5.3 UP100396" for FIRST
INCORRECT VERSION and "5.5 UP063098" for "CORRECTED IN" would apply to
all 5.3 releases with a build date UP100396 or later all 5.4 releases
(regardless of build date) and all 5.5 releases with a build date earlier
than UP063098.
The ANSYS release identifier(s) shown under "corrected in" on the front
side of Class3 Error Reports indicates the first possible release that
contains the correction.
An identifier indicated under "corrected in" does not guarantee that a
general distribution of that release of ANSYS will occur. It does
indicate that the correction is known and implemented in that or any
subsequent release.
Product Applicability
The ANSYS family of component products occasionally undergoes name
changes between releases and/or changes in the functionality of derived
products (such as ANSYS-PC/LINEAR). To minimize the potential for
confusion in these area, unless otherwise noted on the front side of the
Class3 Error Report, the error report applies to all ANSYS family
products (including standalone component products) that contain the
described feature(s) in the designated release(s).
ANSYS [Registered Copy] CLASS3 ERROR REPORT
ERROR NO: 98-01
KEYWORDS: TARGE169 TARGE170 ELEM169 ELEM170 CONTACT
DESCRIPTION OF ERROR:
Use of a nodal coordinate system other than global Cartesian system
(CSYS,0) is not supported for specification of boundary conditions on
target nodes (i.e., nodes associated with element types TARGE169 and
TARGE170).
TYPICAL GUI PATH(S):
Main Menu>Preprocessor>Create>Nodes>To Active CS
Main Menu>Preprocessor>Move/Modify>To Active CS
Main Menu>Solution/Preprocessor>Loads>Apply
FIRST INCORRECT VERSION(S):* CORRECTED IN:*
Release 5.4 Release 5.5
SUGGESTED USER ACTION FOR RUNNING ON UNCORRECTED VERSION:
Before assigning boundary conditions, rotate all the target nodes
into the global Cartesian coordinate system (NROT command).
COMMENTS:
Transfer of solid model B.C.'s (DA, DL) may automatically rotate
nodes into a non-Cartesian coordinate system. Do not use DL or DA to
apply constraints to target nodes.
AUTHOR/CORRECTOR: DATE: February 3, 1998
Yongyi, Zhu
REVIEWED BY QA: DATE: February 3, 1998
William J. Bryan
APPROVAL: DATE: February 3, 1998
David L. Conover
* Unless noted otherwise, this report applies to all ANSYS family
products which contain the described feature in the indicated Release(s).
See the reverse side for details regarding product applicability.
Unless noted otherwise, this error report also applies to all releases
after the first incorrect one and prior to the corrected release. All
releases after "corrected in" are corrected. Manual corrections are
included in on-line documentation as appropriate. Please see the
reverse.side of this sheet for additional information on ANSYS release
identifiers.
ANSYS [Registered Copy] CLASS3 ERROR REPORT
ERROR NO: 98-02
KEYWORDS: PREP7 SHPP, WARN SHAPE CHECKING
DESCRIPTION OF ERROR:
If SHPP,WARN is used to allow the storage of an element that would
otherwise produce a shape ERROR and normal shape testing is then restored
via SHPP,ON, then an incorrect WARNING message can be produced at SOLVE
that could lead to accepting poorly shaped elements.
<<<<<< TYPICAL WARNING PRODUCED >>>>>>
Previous testing revealed that 1 of the 1 selected elements violate
shape warning limits. To review warning messages, please see the
output or error file, or issue the CHECK command.
<<<<<< SHOULD GET THIS TYPE OF WARNING >>>>>>
*** WARNING ***
No shape testing has been performed on 1 of the 1 selected elements.
To perform shape testing on these elements and see any warning
messages about the others, please issue the CHECK command.
Note that solution with "error" elements selected would ordinarily not be
allowed. The SHPP,WARN/SHPP,ON combination can permit solution to
progress with such elements, unless CHECK is done between SHPP,ON and
SOLVE. The effect of this error is that the user is not sufficiently
warned of this possibility.
TYPICAL GUI PATH(S):
Preprocessor>Checking Ctrls>Shape Checking... "On w/Warning msg",
then ..."On w/Error msg"
FIRST INCORRECT VERSION(S):* CORRECTED IN:*
Release 5.4 Release 5.5
SUGGESTED USER ACTION FOR RUNNING ON UNCORRECTED VERSION:
Issue the CHECK command after SHPP,ON.
COMMENTS:
AUTHOR/CORRECTOR: DATE: February 3, 1998
Stan Kelley
REVIEWED BY QA: DATE: February 3, 1998
William J. Bryan
APPROVAL: DATE: February 3, 1998
David L. Conover
* Unless noted otherwise, this report applies to all ANSYS family
products which contain the described feature in the indicated Release(s).
See the reverse side for details regarding product applicability.
Unless noted otherwise, this error report also applies to all releases
after the first incorrect one and prior to the corrected release. All
releases after "corrected in" are corrected. Manual corrections are
included in on-line documentation as appropriate. Please see the
reverse.side of this sheet for additional information on ANSYS release
identifiers.
ANSYS [Registered Copy] CLASS3 ERROR REPORT
ERROR NO; 98-03
KEYWORDS: SHELL63 ELEM63 WARPED ELEMENT THERMAL LOAD
DESCRIPTION OF ERROR:
For SHELL63, the elastic shell element, all results are
incorrect if:
1. the element is warped (all four nodes do not lie in a flat
plane):
and 2. the element is loaded with thermal membrane load (i.e., any
point on the center plane has a temperature other than the
reference temperature):
and 3. the solution uses the nonlinear Newton-Raphson logic (e.g.,
large deflections, plasticity, or contact elements are in use).
The magnitude of the error increases as the warping increases.
TYPICAL GUI PATH(S):
Preprocessor>Element Type>Add/Edit/Delete
Solution>Apply>Temperature>On Nodes: Fnc_BF_temp
FIRST INCORRECT VERSION(S):* CORRECTED IN:*
Rev. 5.0 Release 5.5
SUGGESTED USER ACTION FOR RUNNING ON UNCORRECTED VERSION:
Consider using triangular elements or SHELL181.
COMMENTS:
AUTHOR/CORRECTOR: DATE: February 3, 1998
Peter Kohnke
REVIEWED BY QA: DATE: February 3, 1998
William J. Bryan
APPROVAL: DATE: February 3, 1998
David L. Conover
* Unless noted otherwise, this report applies to all ANSYS family
products which contain the described feature in the indicated Release(s).
See the reverse side for details regarding product applicability.
Unless noted otherwise, this error report also applies to all releases
after the first incorrect one and prior to the corrected release. All
releases after "corrected in" are corrected. manual corrections are
included in on-line documentation as appropriate. Please see the
reverse.side of this sheet for additional information on ANSYS release
identifiers.
ANSYS [Registered Copy] CLASS3 ERROR REPORT
ERROR NO: 98-04
KEYWORDS: HARMONIC RESPONSE MODE SUPERPOSITION DAMPING
DESCRIPTION OF ERROR:
The Structural Analysis Guide erroneously states that there is a
default damping value of 0.005 when using Harmonic Response (ANTYPE,harm)
using the mode superposition option (HROPT,msup). The actual default
value is 0.0.
The value of 0.005 is used ONLY for the computation of the frequency
points at which to calculate response in a mode superposition harmonic
analysis when using the cluster option (HROUT,, on), as described in the
Theory Manual.
TYPICAL GUI PATH(S):
Solution>Analysis Options:Fnc_An_Opts
FIRST INCORRECT VERSION(S):* CORRECTED IN:*
Rev. 5.1 Release 5.5 Structural Analysis Guide
SUGGESTED USER ACTION FOR RUNNING ON UNCORRECTED VERSION:
Use the DMPRAT command to select the desired amount of damping.
COMMENTS:
AUTHOR/CORRECTOR: DATE: February 5, 1998
Peter Kohnke
REVIEWED BY QA: DATE: February 5, 1998
William J. Bryan
APPROVAL: DATE: February 5, 1998
David L. Conover
* Unless noted otherwise, this report applies to all ANSYS family
products which contain the described feature in the indicated Release(s).
See the reverse side for details regarding product applicability.
Unless noted otherwise, this error report also applies to all releases
after the first incorrect one and prior to the corrected release. All
releases after "corrected in" are corrected. Manual corrections are
included in on-line documentation as appropriate. Please see the reverse
side of this sheet for additional information on ANSYS release
identifiers.
ANSYS [Registered Copy] CLASS3 ERROR REPORT
ERROR NO: 98-05
KEYWORDS: SPECTRUM DAMPING SV
DESCRIPTION OF ERROR:
When groups of spectrum values are input on the SV commands, with
each group having a different value of DAMP (damping ratio), the program
linearly interpolates between the groups, even though the documentation
states that the interpolation should be logarithmic.
TYPICAL GUI PATH(S):
Solution>Spectrum>Spectr Values
FIRST INCORRECT VERSION(S):* CORRECTED IN:*
Rev. 4.0 Release 5.5
SUGGESTED USER ACTION FOR RUNNING ON UNCORRECTED VERSION:
Choose damping ratios on the SV command to minimize the amount of
interpolation required.
COMMENTS:
AUTHOR/CORRECTOR: DATE: March 3, 1998
Peter Kohnke
REVIEWED BY QA: DATE: March 3, 1998
William J. Bryan
APPROVAL: DATE: March 3, 1998
David L. Conover
* Unless noted otherwise, this report applies to all ANSYS family
products which contain the described feature in the indicated Release(s).
See the reverse side for details regarding product applicability.
Unless noted otherwise, this error report also applies to all releases
after the first incorrect one and prior to the corrected release. All
releases after "corrected in" are corrected. Manual corrections are
included in on-line documentation as appropriate. Please see the reverse
side of this sheet for additional information on ANSYS release
identifiers.
ANSYS [Registered Copy] CLASS3 ERROR REPORT
ERROR NO: 98-06
KEYWORDS: MODAL CYCLIC SYMMETRY CYCSOL
DESCRIPTION OF ERROR:
Mode shapes obtained in POST1 are incorrect for modal cyclic
symmetry analyses (CYCSOL command) when both of the following are true:
1. The model being analyzed has only 3 DOFs per node (e.g., a
model consisting of only SOLID45 elements);
and 2. Results for nodal diameters other than zero (either NDMIN or
NDMAX in the CYCSOL command is not equal to zero) are
requested.
Note that results for the displacement component UZ will be correct and
the other components will be zero. Frequencies and modal stresses are
also correct.
TYPICAL GUI PATH(S):
Main Menu>Solution>Modal Cyclic Sym
FIRST INCORRECT VERSION(S):* CORRECTED IN:*
Release 5.4 Released 5.5
SUGGESTED USER ACTION FOR RUNNING ON UNCORRECTED VERSION:
Set the ANGLE field of the SET command to "NONE".
COMMENTS:
The error is due to POST1 interpreting the number of nodal diameters
as the symmetry condition for harmonic elements and subsequently
processing the displacements as though they were being evaluated at the
circumferential angle of 0.0 degrees.
AUTHOR/CORRECTOR: DATE: March 17, 1998
John A. Swanson
REVIEWED BY QA: DATE: March 17, 1998
William J. Bryan
APPROVAL: DATE: March 17, 1998
David L. Conover
* Unless noted otherwise, this report applies to all ANSYS family
products which contain the described feature In the indicated Release(s).
See the reverse side for details regarding product applicability.
Unless noted otherwise, this error report also applies to all releases
after the first incorrect one and prior to the corrected release. All
releases after "corrected in" are corrected. Manual corrections are
included in on-line documentation as appropriate. Please see the reverse
side of this sheet for additional information on ANSYS release
identifiers.
ANSYS [Registered Copy] CLASS3 ERROR REPORT
ERROR NO: 98-07
KEYWORDS: SPECTRUM PSD PSDFRQ PSDVAL
DESCRIPTION OF ERROR:
If PSD solutions erroneously produce negative numbers for the
diagonal terms of modal covariance matrix (i.e., where mode i = mode j),
the input PSD curve with a slope of between 1 and 8 is improperly
represented. Consequently, the 1 sigma results will be incorrect.
TYPICAL GUI PATH(S):
Solution>Spectrum>PSD vs Freq
FIRST INCORRECT VERSION(S):* CORRECTED IN:*
Release 5.4 Release 5.5
SUGGESTED USER ACTION FOR RUNNING ON UNCORRECTED VERSION:
Verify that there are no negative diagonal terms in the modal
covariance matrix, and if not, the calculation was performed as
documented.
COMMENTS:
The diagonal terms of modal covariance matrix must be positive
numbers. The error can be seen directly from the output. It is
difficult to predict the error from the input because the input PSD curve
is transformed into polynomials by internal implementation.
AUTHOR/CORRECTOR: DATE: March 17, 1998
Mu-Tsang Chen
REVIEWED BY QA: DATE: March 17, 1998
William J. Bryan
APPROVAL: DATE: March 17, 1998
David L. Conover
* Unless noted otherwise, this report applies to all ANSYS family
products which contain the described feature in the indicated Release(s).
See the reverse side for details regarding product applicability.
Unless noted otherwise, this error report also applies to all releases
after the first incorrect one and prior to the corrected release. All
releases after "corrected in" are corrected. Manual corrections are
included in on-line documentation as appropriate. Please see the reverse
side of this sheet for additional information on ANSYS release
identifiers.
ANSYS [Registered Copy] CLASS3 ERROR REPORT
ERROR NO: 98-08
KEYWORDS: PLANE25 NEWTON RAPHSON
DESCRIPTION OF ERROR:
All results are incorrect for PLANE25, the 4-node axisymmetric-
harmonic structural solid element if:
1. the previous load step had a different value of MODE or ISYM
(MODE command) than the present load step;
and 2. the Newton-Raphson option is active.
Examples of when the Newton-Raphson option is active are when stress
stiffening or element birth and death is present or when a gap element
type has been included.
TYPICAL GUI PATH(S):
Main Menu>Solution>Other>ForHarmonicEle
FIRST INCORRECT VERSION(S):* CORRECTED IN:*
Release 5.4 Released 5.5
SUGGESTED USER ACTION FOR RUNNING ON UNCORRECTED VERSION:
Consider using PLANE83, the 8-node axisymmetric structural solid
element.
COMMENTS:
An error message will appear at Release 5.5 for this condition.
The use of axisymmetric-harmonic elements for nonlinear problems is
very limited, as these elements presume that the entire model is linear.
AUTHOR/CORRECTOR: DATE: March 19, 1998
Peter Kohnke
REVIEWED BY QA: DATE: March 19, 1998
William J. Bryan
APPROVAL: DATE: March 19, 1998
David L. Conover
* Unless noted otherwise, this report applies to all ANSYS family
products which contain the described feature in the indicated Release(s).
See the reverse side for details regarding product applicability.
Unless noted otherwise, this error report also applies to all releases
after the first incorrect one and prior to the corrected release. All
releases after "corrected in" are corrected. Manual corrections are
included in on-line documentation as appropriate. Please see the reverse
side of this sheet for additional information on ANSYS release
identifiers.
ANSYS [Registered Copy] CLASS3 ERROR REPORT
ERROR NO: 98-09
KEYWORDS: *VOPER APDL
DESCRIPTION OF ERROR:
Results of the *VOPER command (which operates on two array
parameters in the form ParR=Par1 o Par2) are incorrect if either of the
array parameters in the operation (Par1 or Par2) is a scalar (rather than
an array) and all of the following are true:
1. the scalar is defined using a parametric expression, e.g., par_
name+3
and 2. the scalar parameter name is exactly 8 characters long
and 4. the array name occurs first in the expression
and 5. the expression is not enclosed in parentheses
TYPICAL GUI PATH(S):
Utility Menu>Parameters>Array Operations>Vector Operations
FIRST INCORRECT VERSION(S):* CORRECTED IN:*
Rev. 5.0 Release 5.5
SUGGESTED USER ACTION FOR RUNNING ON UNCORRECTED VERSION:
Enclose the parametric expression in parentheses, e.g.,
(par_name+3).
COMMENTS:
AUTHOR/CORRECTOR: DATE: April 9, 1998
John A. Swanson
REVIEWED By QA: DATE: April 9, 1998
William J. Bryan
APPROVAL: DATE: April 9, 1998
David L. Conover
* Unless noted otherwise, this report applies to all ANSYS family
products which contain the described feature In the indicated Release(s).
See the reverse side for details regarding product applicability.
Unless noted otherwise, this error report also applies to all releases
after the first incorrect one and prior to the corrected release. All
releases after "corrected in" are corrected. Manual corrections are
included in on-line documentation as appropriate. Please see the reverse
side of this sheet for additional information on ANSYS release
identifiers.
ANSYS [Registered Copy] CLASS3 ERROR REPORT
ERROR NO: 98-10
KEYWORDS: MODAL CYCLIC SYMMETRY CYCSOL EXPAND
DESCRIPTION OF ERROR:
In a Modal Cyclic Symmetry analysis (CYCSOL command), if a base
sector does not have all of its nodes rotated into the global cylindrical
system (NROT,ALL), the expanded displacement solution is incorrect
(EXPAND command in POST1). Stresses and the UZ component of displacement
are correct.
TYPICAL GUI PATH(S):
Main Menu>Preprocessor>Loads>Modal Cyclic Sym
FIRST INCORRECT VERSION(S):* CORRECTED IN:*
Release 5.4 Release 5.5
SUGGESTED USER ACTION FOR RUNNING ON UNCORRECTED VERSION:
Rotate all the nodes into the global cylindrical system (CSYS,1
followed by NROT,ALL) before issuing the CYCGEN command.
COMMENTS:
AUTHOR/CORRECTOR: DATE: April 9, 1998
John A. Swanson
REVIEWED BY QA: DATE: April 9, 1998
William J. Bryan
APPROVAL: DATE: April 9, 1998
David L. Conover
* Unless noted otherwise, this report applies to all ANSYS family
products which contain the described feature in the indicated Release(s).
See the reverse side for details regarding product applicability.
Unless noted otherwise, this error report also applies to all releases
after the first incorrect one and prior to the corrected release. All
releases after "corrected in" are corrected. Manual corrections are
included in on-line documentation as appropriate. Please see the reverse
side of this sheet for additional information on ANSYS release
identifiers.
ANSYS [Registered Copy] CLASS3 ERROR REPORT
ERROR NO: 98-11
KEYWORDS: DA KMODIF SBCTRAN
DESCRIPTION OF ERROR:
If an area has symmetry (or anti-symmetry) boundary conditions
applied to it [DA command] and one of its keypoints is subsequently
modified [KMODIF command], then the area symmetry (or anti-symmetry)
boundary condition will not be transferred to the corresponding finite
element model by a subsequent solid model boundary condition transfer
[SBCTRAN command].
TYPICAL GUI PATH(S):
Main Menu>Preprocessor>Loads>Apply>On Areas
Main Menu>Preprocessor>Move/Modify>Set of KPs
FIRST INCORRECT VERSION(S):* CORRECTED IN:*
Release 5.3 Release 5.5
SUGGESTED USER ACTION FOR RUNNING ON UNCORRECTED VERSION:
COMMENTS:
Apply area symmetry (or anti-symmetry) boundary conditions [DA
command] after modifying the area's keypoint(s) [KMODIF command]. Note
that initiation of a solution [SOLVE command] automatically performs the
SBCTRAN operation.
AUTHOR/CORRECTOR: DATE: April 9, 1998
Wa Kwok
REVIEWED BY QA: DATE: April 9, 1998
William J. Bryan
APPROVAL: DATE: April 9, 1998
David L. Conover
* Unless noted otherwise, this report applies to all ANSYS family
products which contain the described feature in the Indicated Release(s).
See the reverse side for details regarding product applicability.
Unless noted otherwise, this error report also applies to all releases
after the first incorrect one and prior to the corrected release. All
releases after "corrected in" are corrected. Manual corrections are
included in on-line documentation as appropriate. Please see the reverse
side of this sheet for additional information on ANSYS release
identifiers.
ANSYS [Registered Copy] CLASS3 ERROR REPORT
ERROR NO: 98-12
KEYWORDS: LAYER POST1 PRNSOL POWERGRAPHICS
DESCRIPTION OF ERROR:
The PRNSOL command does not output the correct LAYER results when
PowerGraphics is enabled. (i.e. SOLID46, SHELL91, and SHELL99).
TYPICAL GUI PATH(S):
General PostProc/List Results/Nodal Solution
FIRST INCORRECT VERSION(S):* CORRECTED IN:*
Rev. 5.0A Release 5.5
SUGGESTED USER ACTION FOR RUNNING ON UNCORRECTED VERSION:
Issue /GRAPH,FULL before listing PRNSOL "layer" results.
COMMENTS:
In the corrected release, the PRNSOL command will output results in
FULL graphics mode when the LAYER command has been issued.
AUTHOR/CORRECTOR: DATE: April 9, 1998
Paul Tallon
REVIEWED BY QA: DATE: April 9, 1998
William J. Bryan
APPROVAL: DATE: April 9, 1998
David L. Conover
* Unless noted otherwise, this report applies to all ANSYS family
products which contain the described feature in the indicated Release(s).
See the reverse side for details regarding product applicability.
Unless noted otherwise, this error report also applies to all releases
after the first incorrect one and prior to the corrected release. All
releases after "corrected in" are corrected. Manual corrections are
included in on-line documentation as appropriate. Please see the reverse
side of this sheet for additional information on ANSYS release
identifiers.
ANSYS [Registered Copy] CLASS3 ERROR REPORT
ERROR NO: 95-07 R2
KEYWORDS: PRO/ENGINEER THERMAL STRESS REFERENCE TEMPERATURE
DESCRIPTION OF ERROR:
Results from any thermal-stress solution run from within the ANSYS-
Pro/ENGINEER environment will be incorrect unless the intended thermal
expansion reference temperature for the thermal strain calculation is 0
degrees.
FIRST INCORRECT VERSION(S):* CORRECTED IN:*
ANSYS-Pro/ENGINEER 9345 ANSYS-Pro/ENGINEER [Strikeout
9738]
SUGGESTED USER ACTION FOR RUNNING ON UNCORRECTED VERSION:
The following two steps should be done:
1. Select the proper constraint case via the "Sel Cons Case" item
under the "Run Study" menu (required only if more than 1
constraint case was defined).
and 2. Include the proper Reference Temperature via the "Use inp File"
item under the "Run Study" menu using the following sequence of
commands (temp should be the numerical value of the required
Reference Temperature):
[Strikeout: /PREP7
TREF, temp
LSWR.1
FINISH]
COMMENTS:
The thermal expansion reference temperature may be specified in the
Pro/ENGINEER material file. However, this value is not included in the
list of material properties given to the ANSYS program unless a
structural temperature is defined in Pro/MESH.
[Strikeout Number following product name is the version number]
AUTHOR/CORRECTOR: DATE: March 17, 1998
Robert W. Gorman
REVIEWED BY QA: DATE: March 17, 1998
William J. Bryan
APPROVAL: DATE: March 17, 1998
David L. Conover
* Unless noted otherwise, this report applies to all ANSYS family
products which contain the described feature in the indicated Release(s).
See the reverse side for details regarding product applicability.
Unless noted otherwise, this error report also applies to all releases
after the first incorrect am and prior to the corrected release. All
releases after "corrected in" are corrected. Manual corrections are
included in on-line documentation as appropriate. Please see the reverse
side of this sheet for additional information on ANSYS release
identifiers.
ANSYS [Registered Copy] CLASS3 ERROR REPORT
Page 1 of 2 ERROR NO: 97-50 R1
KEYWORDS: VMESH VDRAG VEXT VOFFST VROTAT ACCAT
DESCRIPTION OF ERROR:
[Strikeout: VMESH fails to form pyramids at the interface between
volumes containing hex and tet elements if:
1. the hex elements were generated using VDRAG, VEXT, VOFFST
or VRDT
or 2. the set of all areas belonging to the hex meshed are
concatenated (ACCAT) and one of the concatenated areas
belongs to a volume that is subsequently meshed with
tetrahedra.
or 3. the volume being meshed with tetrahedra was previously
meshed with an element type not supporting the pyramid
shape, then cleared (this was observed only when the area
shared between the volumes was meshed with
quadrilaterals).
Failure to form pyramids at the interface results in discontinuities
between the two volumes where two tetrahedron elements triangular faces
are attached to a single quadrilateral face of a hexahedron element.
This is likely to reduce solution accuracy near the interface.]
TYPICAL GUI PATH(S):
Main Menu>Preprocess>Mesh>Volumes-Free
FIRST INCORRECT VERSION(S):* CORRECTED IN:*
Release 5.4 Release 5.5
SUGGESTED USER ACTION FOR RUNNING ON UNCORRECTED VERSION:
[Strikeout: For Case 1.]
Prior to performing the VMESH, perform AMESH command on interface
areas to generate quadrilateral elements. VMESH will then correctly
generate pyramids interfacing the quads. Delete the interface quad
elements afterwards.
[Strikeout: For Case 2.
Delete area concatenations (ADEL) after creating the brick mesh, but
before creating the tetrahedron mesh
for Case 3.
Clear quadrilateral elements, if any, from the area shared between
the affected volumes.]
ANSYS [Registered Copy] CLASS3 ERROR REPORT
Page 2 of 2 ERROR NO: 97-50 R1
COMMENTS:
[Strikeout: (If output has not been suppressed) the following type of
NOTE will appear in the output window whenever a pyramid transition is
formed:]
[Strikeout: *** NOTE *** CP= 23.750 TIME= 13:12:18]
AUTHOR/CORRECTOR: DATE: April 9, 1998
F. S. Kelley
REVIEWED BY QA: DATE: April 9, 1998
William J. Bryan
APPROVAL: DATE: April 9, 1998
David L. Conover
* Unless noted otherwise, this report applies to all ANSYS family
products which contain the described feature in the indicated Release(s).
See the reverse side for details regarding product applicability.
Unless noted otherwise, this error report also applies to all releases
after the first incorrect one and prior to the corrected release. All
releases after "corrected in" are corrected. Manual corrections are
included in on-line documentation as appropriate. Please see the reverse
side of this sheet for additional information on ANSYS release
identifiers.
ANSYS [Registered Copy] CLASS3 ERROR REPORT
ERROR NO: 98-01 R1
KEYWORDS: TARGE169 TARGE170 ELEM169 ELEM170 CONTACT
DESCRIPTION OF ERROR:
Use of a nodal coordinate system other than global Cartesian s stem
(CSYS, 0) is not supported for [Strikeout: specification of boundary
conditions on] target nodes (i.e., nodes associated with element types
TARGE169 and TARGE170).
TYPICAL GUI PATH(S):
Main Menu>Preprocessor>Create>Nodes>To Active CS
Main Menu>Preprocessor>Move/Modify>To Active CS
[Strikeout: Main>Solution/Preprocessor>Loads>Apply
FIRST INCORRECT VERSION(S):* CORRECTED IN:*
Release 5.4 Release 5.5
SUGGESTED USER ACTION FOR RUNNING ON UNCORRECTED VERSION:
[Strikeout: Before assigning boundary conditions,] Rotate all the
target nodes into the global Cartesian coordinate system, (NROT command).
COMMENTS:
Transfer of solid model B.C.'s (DA, DL) may automatically rotate
nodes into a non-Cartesian coordinate system. Do not use DL or DA to
apply constraints to target nodes.
AUTHOR/CORRECTOR: DATE: March 17, 1998
Yongyi Zhu
REVIEWED BY QA: DATE: March 17, 1998
William J. Bryan
APPROVAL: DATE: March 17, 1998
David L. Conover
* Unless noted otherwise, this report applies to all ANSYS family
products which contain the described feature in the indicated Release(s).
See the reverse side for details regarding product applicability.
Unless noted otherwise, this error report also applies to all releases
after the first incorrect one and prior to the corrected release. All
releases after "corrected in" are corrected. Manual corrections are
included in on-line documentation as appropriate. Please see the reverse
side of this sheet for additional information on ANSYS release
identifiers.
ANSYS QA NOTICE
NOTICE NO: QA98-01
SUBJECT: THERMAL ANALYSIS TRIANGULAR ELEMENTS TRANSIENT
DESCRIPTION:
Transient thermal results using second-order triangular thermal
elements may be inaccurate due to an under-integrated specific heat
matrix. Second-order triangular thermal elements include PLANE35,
PLANE77, and PLANE78. These elements behave as documented in our
Elements Manual.
TYPICAL GUI PATH(S):
Preprocessor > Element Type > Add/Edit/Delete[Add][Thermal Solid]
Solution > New Analysis > Transient
Preprocessor > Mesher Opts > [MSHAPE][2D Shape Key][Tri]
AFFECTED VERSIONS: Rev. 4.2 - Release 5.3
ANSYS/Thermal Rev. 4.2 through ANSYS/Thermal Release 5.3
OTHER COMMENTS:
Use quadrilateral shaped elements (PLANE77, PLANE78) or first order
triangular elements (PLANE55, PLANE75) for transient thermal analyses.
The inaccuracy is more pronounced for problems with slow transient
behavior.
AUTHOR: DATE: February 3, 1998
Subhasish Roy Choudhury
REVIEWED BY QA: DATE: February 3, 1998
William J. Bryan
APPROVAL: DATE: February 3, 1998
David L. Conover
ANSYS QA NOTICE
NOTICE NO: QA98-02
SUBJECT: SOLID87 SOLID98 THERMAL ANALYSIS TRANSIENT ANALYSIS
DESCRIPTION:
SOLID87 (3-D 10-Node Tetrahedral Thermal Solid) elements with curved
sides and SOLID98 (Tetrahedral Coupled-Field Solid) elements (with
straight or curved sides) produce inaccurate results in a thermal
transient analysis. Before 5.3, any SOLID87 element (even one with
straight sides) exhibited this inaccurate behavior. However, they behave
as documented in our Elements Manual.
TYPICAL GUI PATH(S):
Preprocessor > Element Type > Add/Edit/Delete [Add][Coupled Field][Scalar
Tet 98]
Preprocessor> Element Type> Add/Edit/Delete [Add][Thermal Solid] [Tet 10
node 87]
Solution > New Analysis > Transient
AFFECTED VERSIONS: Rev. 4.2 through Release 5.3
ANSYS/Thermal Rev. 4.2 through ANSYS/Thermal Release 5.3
OTHER COMMENTS:
For a transient analysis with SOLID87 elements, use SOLID87 elements
with straight edges only. Note that issuing the ESHAPE (ELSIZE prior to
Rev. 5.0) with KSTR = 1 command (Main Menu > Preprocessor > Shape & Size
> Element Shape in the GUI) will force the SOLID87 (or any other mid-side
node elements) to have straight edges in any subsequent mesh.
This inaccuracy is due to under-integration of the specific heat
matrix. The inaccuracy is more pronounced for problems with slow
transient behavior.
AUTHOR: DATE: February 3, 1998
Subhasish Roy Choudhury
REVIEWED BY QA: DATE: February 3, 1998
William J. Bryan
APPROVAL: DATE: February 3, 1998
David L. Conover
ANSYS QA NOTICE
NOTICE NO: QA98-03
SUBJECT: POST1 *GET CENTROID LARGE DEFLECTION
DESCRIPTION:
In POST1, following a large-deflection analysis, obtaining the
element centroid by issuing *GET,par,ELEM,entnum,CENT,x (or y or z) gets
the original centroid location, not the final (displaced) centroid
location. The *GET command description would lead users to believe that
this item, listed under POST1, would be updated for large deflections.
However, the element centroid that is obtained by *GET is not updated for
large deflections.
Typical GUI Path(s):
Utility Menu > Parameters > Get Scalar Data > Results data; Element
results>Geometry;Elem loc CENTX/Y/Z
AFFECTED VERSIONS: Revision 5.0 thru Release 5.4
SUGGESTED USER ACTION:
SOLVE, then SAVE the original database. Use UPCOORD to update the
geometry, and SAVE another database with updated geometry. The updated
database can be used to *GET an updated element centroid location. The
original database can be used for all other postprocessing.
COMMENTS:
At Release 5.5, the reference to element centroid location in the
POST1 section of the GET command description, as well as the
corresponding items in the GUI will be removed.
AUTHOR: DATE: March 17, 1998
John Dulis
REVIEWED BY QA: DATE: March 17, 1998
William J. Bryan
APPROVAL: DATE: March 17, 1998
David L. Conover
ANSYS QA NOTICE
NOTICE NO: QA98-04
SUBJECT: GUI *GET KEYOPT
DESCRIPTION:
In the GUI, any data entered for the double digit KEYOPTS (10, 11,
and 12) in the Preprocessor-Element Type-Options dialog box results in
subsequent dialog boxes showing the KEYOPT1 value. When this dialog box
is accepted, the KEYOPT1 value is used. The initial setting however is
stored correctly. This also occurs in picking model data for element
types in Parameters-GetScalarData-ModelData-ElementTypes-OK-(Keyopt10,
11, or 12).
Typical GUI Path(s):
Parameters > Get Scalar Data > Model Data//Element Types//OK > Keyopt(10)
or (11) or (12) and Preprocess-Element Type-Options
AFFECTED VERSIONS: Revision 5.1 through Release 5.4
SUGGESTED USER ACTION:
Do not rely on the dialog box settings for keyopts greater than 9.
All double digit keyopts have this problem. Use command line input for
setting the higher keyopt values.
COMMENTS:
AUTHOR: DATE: March 17, 1998
Ron Werkmeister
REVIEWED BY QA: DATE: March 17, 1998
William J. Bryan
APPROVAL: DATE: March 17, 1998
David L. Conover
ANSYS QA NOTICE
NOTICE NO: QA98-05
SUBJECT: YEAR 2000 LEGACY DATA LICENSING
DESCRIPTION:
Revision 5.0 of ANSYS, released in 1992, and all prior releases have
an error in the software that will prevent the software from running
beyond December 31, 1999.
AFFECTED VERSIONS: ANSYS Releases prior to Revision 5.0A
SUGGESTED USER ACTION:
If you are using these releases of the ANSYS products, you are urged
to move to Release 5.4 as soon as possible. Contact your local ANSYS
Support Distributor for information on making this move. For special
needs regarding legacy engineering data for releases prior to 5.0A,
please contact Linda Richard at via email at linda.richard@ansys.com or
by telephone at 724-514-2914 in our Customer Services Unit to find out
more about the services that are available.
AUTHOR: DATE: April 9, 1998
Sam Murgie
REVIEWED BY QA: DATE: April 9, 1998
William J. Bryan
APPROVAL: DATE: April 9, 1998
David L. Conover
ANSYS QA NOTICE
Page 1 of 3 QA98-06
ANSYS 5.4 Interim Release Service Pack 4 Service Pack 6
An interim release of ANSYS 5.4 which allows user Fortran customization
on the Intel Windows NT platform, extends university version problem
limits and contains some error corrections is now available. This
interim release is identified as ANSYS 5.4 UP19980310. lt is available
in two forms. It maybe obtained from the ANSYS Homepage (www.ansys.com -
Services,Support > Software Update Manager) as ANSYS Service Packs 4 and
6. It is also available on CD and may be obtained by completing a
request form that is available on the ANSYS Homepage (Services,Support >
Software Update Manager in the Interim Releases area). The request form
is also available from your ANSYS Support Distributor.
Description of ANSYS Service Packs 4 and 6
Service Pack 4 contains the most current ANSYS executable (UP19980310),
the DISPLAY executable, and the XANSYS executable (UNIX only), along with
a set of updated utility scripts, command macros, and graphical user
interface (GUI) granules. These contents are replacements for earlier
releases of these ANSYS 5.4 files. These updated files contain
corrections for several errors that were detected, reported, and
corrected after the initial release of ANSYS 5.4. The following
corrections are in Service Pack 4. The numbers in parentheses associated
with each item are reference numbers corresponding to our internal error
tracking system and are listed here for your convenience in referencing a
particular error.
PCG Solver Corrections:
o The PCG solver was corrected for non-convergence in some isolated
conditions and for re-running after the Stop button was used to stop
a running analysis. (10534, 10550)
General Solver Corrections
o SOLID95 produces correct plasticity results in POST1 for SEPL, EPEQ,
and HPRES. (10170).
o Wave propagation for small time delays corrected in PSD analysis.
(10178)
o Convergence for node-to-node contact (CONTAC12 and CONTAC52) is
improved. (10752)
o Substructure runs now have reduced memory requirements. (10449)
o The correct force vectors are now available for mode superposition
harmonic analysis after a modal solution performed using
PowerDynamics. (9766)
Modeling/Meshing Corrections:
o You can now use the approximate location option to create a straight
line perpendicular to an existing line (LANG command). (10047)
o The CEINTF command now works correctly with partial sets of DOFs.
(10516)
Element Corrections
o Small models using large element numbers no longer require unusually
high memory usage. (10269)
o FLOTRAN FLUID142 now allows TEMP as a valid degree of freedom on the
BFINT command. (10515)
o Elements in large models that sometimes did not appear are now
correctly displayed usingEXPAND and /EXPAND. (10623)
o Element centroid and volume data is now available when loading
geometry via the SET command (no RESUME of the database). (10831)
o POST1 reaction forces for harmonic elements are correct if an ANGLE
other than "none" is specified on the SET command. (10803)
ANSYS QA NOTICE
Page 2 of 3 QA98-06
Windows NT/95 Version Corrections:
o GUI configuration in the Launcher now works correctly. (9788)
o The Display program window now allows reduction to zero height or
width. (10264)
o The Launcher under Windows 95 now works correctly. (10251)
o MIN/MAX fields on the select commands are no longer truncated to 20
characters. (10210)
o The -p option can now be placed anywhere in the string of ANSYS
command line options. (10625)
Other Corrections:
Other corrections/improvements include:
o Graphics: pressure arrows, dynamic rotation/manipulation,
PowerGraphics, and other plotting improvements
o GUI: highlighting, missing GUI options, STOP button, and GUI data
handling
o Speed/Performance: Load step handling, printing nodal solutions,
element modification, facet specification.
Class 3 Errors Corrected:
The following Class3 Errors are corrected in this release. See the ANSYS
Home Page (www.ansys.com - ANSYS Zones> Customer) for details of the
items listed 97-50, 97-51, 97-52,97-53, 97-54, 97-56, 97-57, 98-03, 98-
06, 98-07, 98-09
QA Notices:
The correction for QA Notice QA98-04 is included in this release. See
the ANSYS Home Page (www.ansys.com - ANSYS Zones> Customer) for details
of QA98-04.
It should be noted that QA Notice QA97-05 applies to this interim
release. If a database file (Jobname.DB) created in the 5.4 UP19971021
release or any later 5.4 release (including this interim release) is used
when resuming in an earlier 5.4 release such as the ANSYS, 5.4 initial
release (UP19970828) or the Connection release (UP19970930), then the
program will abort. If you will be sharing databases with other 5.4
installations, you can avoid this problem by making sure that all of your
ANSYS 5.4 products (ANSYS, ANSYS/LS-DYNA, and ANSYS Connection) have the
most current ANSYS executable (UP19980310).
Additionally, Service Pack 4 contains all changes and corrections made in
ANSYS Service Packs 1 and 3. See the ANSYS Service Packs area in Software
Update Manager on the ANSYS Homepage for information about Service Packs
1 and 3.
Service Pack 6 contains an updated ANSYS License Manager Daemon
(ansys_lm). This newer daemon corrects several Elan errors, including
the following Windows-specific problems:
License manager corrections
License files can disappear under certain circumstances.
The license manager does not always restart when the system is rebooted.
The license manager sometimes starts and stops for unexplained reasons.
ANSYS QA NOTICE
Page 3 of 3 QA98-06
Information regarding User Programmable Features and re-linking ANSYS
The ANSYS 5.4 UP19980310 CD must be acquired in order to make use of
user-programmable features with this interim release. Object files and
scripts that are required for re-linking the ANSYS program are included
on the CD but are not provided with Service Packs 4 and 6 on the ANSYS
Homepage. If Service Packs 4 and 6 are obtained from the ANSYS Homepage
and installed and then a re-link (for user programmable features) is
subsequently performed, then the previously installed ANSYS Release will
be used by the re-link. This will result in the loss of Service Pack 4
changes and corrections.
Beginning with this interim release, user-programmable features are no
longer supported on Intel NT 3.51 systems due to the unavailability of
compilers for this platform. Also beginning with this interim release,
the following compilers are required in order to use user-programmable
features on Intel Windows 95 and Intel Windows NT 4.0 systems:
Microsoft Visual C++ v5.0, Microsoft Service Pack 3
Digital Visual Fortran v5.0B
Author: Date: April 9,1998
Ken Rodlaszewski
Reviewed by QA: Date: April 9,1998
William J. Bryan
Approval: Date: April 9, 1998
David L. Conover
ANSYS SUPPORT COORDINATOR BULLETIN
SCB 98-02
Occasionally and apparently randomly, the Sun version of ANSYS 5.4
runs indefinitely, i.e. never completes, during ANSYS solution. If this
occurs, we recommend that you simply try running the solution again. Our
experience to date indicates that subsequent executions of the same ANSYS
solution are likely to run to completion.
ANSYS Inc. and Sun Microsystems are working diligently to understand
and correct this problem. Any progress made will be communicated in a
future Support Coordinator Bulletin.
Author: Date: April 9,1998
Sam Murgie
Reviewed by QA: Date: April 9, 1998
William J. Bryan
Approval: Date: April 9, 1998
David L. Conover
ANSYS
March 27, 1998
Dear Valued Customer:
In an ongoing effort of providing superior level service to our
customers, ANSYS is pleased to announce the availability of Interim
Product Releases.
Interim Releases contain product maintenance as well as changes needed to
support new ANSYS products.
The Interim Release will be provided to any new customer and also offered
to existing customers under a valid TECS ( Maintenance ) agreement or
lease agreement.
To make it easy for you to request the release, we have added a new
section on the ANSYS Homepage where you can down load the version at your
convenience. ( Service - Software Update Manager)
Our objective is to be able to offer Interim Releases three to four times
a year.
Existing TECS and lease customers will be notified quarterly, through the
ANSYS Support Coordinator, via a QA Notice announcing availability and a
summary of any new interim releases. The ANSYS Homepage (Service -
Software Update Manager) is always available for more timely notification
and content details.
If you have any questions, please contact your local ASD for additional
details or contact me at 724514-3094.
Sincerely,
Paul A. Chilensky
Vice President, Customer Services
ANSYS SUPPORT COORDINATOR BULLETIN
BULLETIN NO: SCB98-01
This bulletin is being issued to inform users of the existence of an
undocumented form of the MP command with Lab = EMIS and to prevent
potential confusion or misuse when generating a radiation matrix in
AUX12.
KEYWORDS: Emissivity EMIS undocumented command AUX12
DESCRIPTION:
An undocumented EMIS command exits in PREP7 and SOLUTION. It is a
short form of the MP,EMIS,... command and it exists to provide upward
compatibility of pre-Revision 5.0 input. Users should be aware of the
difference between the undocumented PREP7/SOLUTION EMIS command and the
documented AUX12 EMIS command as well as how emissivity is defined for
AUX12 radiation matrix generation.
The undocumented EMIS command defines the PREP7 material property
emissivity as described in pre Revision 5.0 User Manual documentation.
As with all material properties defined with the MP command, such a
defined emissivity material property is used as described in the Elements
Reference and the Theory Manual. It is not used for emissivity in AUX12.
Note that only a few elements (ex. LINK31, SURF19, SURF22), as noted in
the Elements Reference, make use of the emissivity material property and
that these elements are not used to define radiating surfaces for AUX12.
LINK32 or SHELL57 elements must be used to define radiating surfaces for
AUX12. The documented AUX12 EMIS command must be used in AUX12, as
described in Generating the AUX12 Radiation Matrix in chapter 4 of the
ANSYS Thermal Analysis Guide (section 4.4 of the Procedures Manual prior
to the 5.3 Release) to define the emissivity for radiation matrix
generation.
Potential Impact:
If MP,EMIS or the undocumented form (EMIS) of the MP,EMIS command is
mistakenly used in PREP7 or SOLUTION to define an emissivity material
property value and no EMIS command is issued in AUX12 to define the
emissivity for radiation matrix generation, then the default emissivity
value of unity (1.0) will be used for the radiation matrix calculation in
AUX12.
AUTHOR: DATE: February 3, 1998
Ken Rodlaszewski
REVIEWED BY QA: DATE: February 3, 1998
William J. Bryan
APPROVAL: DATE: February 3, 1998
David L. Conover
ANSYS
March 20, 1998
Dear Valued Customer:
ANSYS 5.5 is nearing beta release, with Q3 1998 availability. This
upcoming release continues our commitment to provide state-of-the-art
problem solving capability for a variety of Multiphysics simulations.
Major enhancements are expected in the following areas.
Geometry Import/Meshing:
Improved geometry importation, beam meshing with orientation, a new
quad surface mesher, sweep meshing in existing volumes.
Structural Mechanics/Dynamics:
2D and 3D flexible to flexible contact (simplified stiffness, low
and high order element support, friction models, weak springs), new
lower and higher order beam elements, Beam Tool for beam section
definition, new 2D and 3D finite strain solid elements.
Multiphysics:
Advanced thermal boundary conditions, new pipe element, new surface
elements, advanced turbulence models, Petro-Galerkin formulation for
CFD, nonlinear harmonic electromagnetic analysis.
Prep/ Graphics/ Post/ APDL:
Faster graphics, Visual GUI Builder, space ball support, support of
element shapes with PowerGraphics, 2D translucency, Windows metafile
(.wmf) and enhanced metafile (.emf) support.
As part of our ongoing support, we are informing you of modifications to
supported hardware platforms and operating system levels that are
required for ANSYS 5.5. Please review the enclosed attachment describing
the Hardware and System Support for ANSYS 5.5. If you have any
questions, please contact your ANSYS Support Distributor.
We thank you for your understanding and cooperation as we make
improvements to the ANSYS Family of Products. We are confident that you
will find much to be excited about in our upcoming release!
Sincerely,
Frank J. Marx, PE
Hardware and System Support for ANSYS 5.5
The table below lists the hardware and the appropriate operating system
level for the ANSYS 5.5 Family of Products. ANSYS/LS-DYNA runs on a
limited set of these platforms as indicated in the table. The operating
system levels that are new or different from ANSYS 5.4 are preceded by an
asterisk
Table ANSYS 5.5 Supported Hardware
Table "ANSYS 5.4. CLASS3 ERROR SUMMARY" - Keyword Sort of All Revision 5.4
Table "ANSYS 5.4. CLASS3 ERROR SUMMARY" - Report Number Sort
Table "ANSYS 5.3. CLASS3 ERROR SUMMARY" - Report Number Sort
Table "ANSYS 5.3 ClASS3 ERROR SUMMARY" - Keyword Sort
*** END OF DOCUMENT ***
