Protecting People and the EnvironmentUNITED STATES NUCLEAR REGULATORY COMMISSION
ACCESSION #: 9606180635
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Information & Support Services
P.O. Box 3707
Seattle, WA 98124-2207
June 11, 1996
G-1151-SJA-96-337
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
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
Tenera Engineering Services Gibbs & Hill, Inc.
Error notices have been sent to our other former customers.
Very truly yours,
Sandra J. Andrews
Nuclear Administrator
G-1151 M/S 7A-33
(206) 865-6248
Attachment(s): ANSYS Class3 Error Reports 96-15, 96-16, 96-17, 96-18, 96
19, 96-20;
ANSYS QA Notice QA96-04;
Class3 Error Report Summaries for Rev. 5.1 and Rev. 5.2
ANSYS [Registered Trademark] ANSYS, Inc.
201 Johnson Road
Houston, PA Telephone 412.746.3304
15342-1300 Facsimile 412.746.9494
May 31, 1996 JUN 10 1906
CONTRACTS
Dear Class3 Error Recipient:
Enclosed you will find ANSYS Class3 Error Reports 96-15, 96-16, 96-
17, 96-18, 96-19, 96-20 and ANSYS QA Notice QA96-04.
QA Notice QA96-04 is being issued to clarify a warning message
produced when the LDREAD command is used to transfer heat generation
rates from a harmonic magnetic analysis to a FLOTRAN analysis. As
mentioned in the QA Notice, a macro is available on the ANSYS HomePage
that may be used to assist users in transferring heat generation rates
for such cases.
Also enclosed, for your convenience, are Class3 Error Report
Summaries for Rev. 5.1 and Rev. 5.2, sorted both by keyword and Class3
Error Report Number.
Sincerely,
ANSYS, Inc.
Ken Podlaszewski
Associate QA Engineer
ANSYS is a registered trademark of SAS IP
ANSYS Revision Identifier Description
ANSYS revision identifiers consist of a major revision level, a minor
revision level, a correction level, and occasionally a special version
level. An example of how this is constructed is shown below:
Figure omitted.
Major revision level changes indicate that new features have been
added to the program and that some level of program architecture change
and/or file structure has occurred. Minor revision level changes also
indicate that new features have been added to the program, but files are
upwardly compatible. All known error fixes are included in both minor
and major revisions. Changes to the correction level indicate that it is
primarily an error correction release. Special version identifiers
indicate that one or more additional minor changes have been made to the
program, normally to circumvent an error. Special versions are not
general releases to all ANSYS licensees, since they typically represent
errors occurring only on one system, a subset of our customers who have
specific graphics devices, etc.
The ANSYS revision identifier(s) shown under "corrected in" on the
front side of this Class3 Error Report indicates the first possible
revision that could contain the correction. A major program change
needed to fix an error can dictate that the next minor or major revision
will contain the fix rather than the next correction level. For example
when errors were being reported while Rev. 4.3A was the latest
production version, most Class3 error reports indicated that 4.3B was the
"corrected in" revision. Others requiring significant code restructuring
were reported as fixed in 4.4. Rev. 4.3B was never released, but Rev.
4.4 contained all error corrections noted as fixed in 4.3B.
An identifier indicated under "corrected in" does not guarantee that
a general release of that revision of ANSYS will occur. It does indicate
that the correction is known and implemented in the coding that would be
part of that general release.
Equivalent Product Identifiers
The ANSYS family of products occasionally undergoes name changes
between revisions and/or changes in the functionality of derived products
(such as ANSYS-PC/LINEAR). To minimize the potential for confusion in
these areas, the important product name equivalences (similar program
functionality and error content) are listed below.
ANSYS/ED contains all errors shown for the full ANSYS product,
starting at Rev. 5.0,
and beyond, unless
otherwise noted.
PC/LINEAR is equivalent to WS/LINEAR at Rev. 4.4A.
and ANSYS/LINEAR starting at
Rev. 5.0.
PC/THERMAL is equivalent to WS/THERMAL at Rev. 4.4A,
and ANSYS/THERMAL starting at
Rev. 5.0.
PREPPOST contains relevant errors the full ANSYS product,
shown for for included pre-
and postprocessing
functionality
ANSYS[Registered Trademark] CLASS3 ERROR REPORT
ERROR NO: 96-15
KEYWORDS: GP LSWRITE LSSOLVE
DESCRIPTION OF ERROR:
Use of a file created by the LSWRITE command, when used in
combination with gaps defined by the GP command, can lead to doubling of
the gap stiffness on the first load step if the LSWRITE command was
issued after the gaps were defined and the load step file (LSSOLVE) is
read without deleting the gaps in the database (using GPDELE).
FIRST INCORRECT VERSION(S):*_/ CORRECTED IN:*_/
Rev. 5.0 Release 5.3
ANSYS/LinearPlus Rev. 5.0A ANSYS/LinearPlus Rev. 5.3
SUGGESTED USER ACTION FOR RUNNING ON UNCORRECTED VERSION:
1. Issue LSWRITE before defining gaps; or
2. SAVE the database before defining the gaps and RESUME the database
after defining the gaps and issuing the LSWRITE command; or
3. Delete the gaps after issuing the LSWRITE command and SAVE the
database.
COMMENTS:
1. The doubling of the gaps occurs only on the first load step, because
after the first load changes in the gap stiffness are not allowed.
2. In Release 5.3, a warning will be issued when gaps are read in from
an input file for a model in which gaps already exist. The
definition will not be blocked, however, since under some conditions
it may be desirable to duplicate gaps at a node.
3. The procedure for running in the corrected version is the same as
for running in the uncorrected version.
AUTHOR/CORRECTOR: DATE: May 28, 1996
Christopher W. Aiken
REVIEWED BY QA:
William J. Bryan DATE: May 28, 1996
APPROVAL:
John A. Swanson DATE: May 28, 1996
*_/If a product name is no included in the "first incorrect version", the
full ANSYS program is implied. For products not listed, this error does
not apply, but see the reverse side for equivalent product designations.
Unless noted otherwise, this error report also applies to all revisions
after the first incorrect one and prior to the corrected revision. All
revisions 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 revision
identifiers.
ANSYS[Registered Trademark] CLASS3 ERROR REPORT
ERROR NO: 96-16
KEYWORDS: IMPOSED DEGREES OF FREEDOM RAMP TO ZERO
DESCRIPTION OF ERROR:
All results are incorrect when:
1. one or more imposed degrees of freedom (D command) are ramped
over a load step (KBC,O) from a nonzero value to a zero value:
and 2. there are at least two substeps in the ramp;
and 3. option on the NROPT command is 1 (FULL) or 2 (MODI) (option
defaults to this when using plasticity, large deflection,
contact elements, etc.).
FIRST INCORRECT VERSION(S):*_/ CORRECTED IN:*_/
Rev. 4.0 Release 5.3
ANSYS/Emag Rev. 5.0A ANSYS/Emag Release 5.3
SUGGESTED USER ACTION FOR RUNNING ON UNCORRECTED VERSION:
Either ramp imposed degree(s) of freedom to a very small non-zero
value (e.g. 1.0e-8) instead of zero, or use a value of 3 (INIT) for
option on the NROPT command.
COMMENTS:
At Revisions 4.0 to 4.4, the NT command could also be used to
specify imposed degrees of freedom.
AUTHOR/CORRECTOR: DATE: May 28, 1996
Peter Kohnke
REVIEWED BY QA: DATE: May 28, 1996
William J. Bryan
APPROVAL: DATE: May 28, 1996
John A. Swanson
*_/If a product name is not included in the "first incorrect version",
the full ANSYS program is implied. For products not listed, this error
does not apply, but see the reverse side for equivalent product
designations.
Unless noted otherwise, this error report also applies to all revisions
after the first incorrect one and prior to the corrected revision. All
revisions 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 revision
identifiers.
ANSYS[Registered Trademark] CLASS3 ERROR REPORT
ERROR NO: 96-17
KEYWORDS: MODAL ANALYSIS LARGE DEFLECTION
DESCRIPTION OF ERROR:
The stresses in modal and spectrum analyses of large deflection
solutions (See section 3.3.4 of the Procedures Manual) are incorrect.
FIRST INCORRECT VERSION(S):*_/ CORRECTED IN:*_/
Rev. 5.1 Release 5.3
SUGGESTED USER ACTION FOR RUNNING ON UNCORRECTED VERSION:
COMMENTS:
The frequencies and mode shapes in the uncorrected version are
correct.
The correction at Release 5.3 will require the use of a new command
(UPCOORD, on) to update the coordinates of the elements upon which to
base the stress calculations.
AUTHOR/CORRECTOR: DATE: May 28, 1996
Peter Kohnke
REVIEWED BY QA: DATE: May 28, 1996
William J. Bryan
APPROVAL: DATE: May 28, 1996
John A. Swanson
*_/If a product name is not included in the "first incorrect version",
the full ANSYS program is implied. For products not listed, this error
does not apply, but see the reverse side for equivalent product
designations.
Unless noted otherwise, this error report also applies to all revisions
after the first incorrect one and prior to the corrected revision. All
revisions 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 revision
identifiers.
ANSYS[Registered Trademark] CLASS3 ERROR REPORT
ERROR NO: 96-18
KEYWORDS: SHELL43 ELEM43 STRESS STIFFENING PRESTRESS MODAL
DESCRIPTION OF ERROR:
SHELL43 elements with pre-stress modal analysis using subspace
method [MODOPT] produces incorrect results.
FIRST INCORRECT VERSION(S):*_/ CORRECTED IN:*_/
Rev. 5.0 Rev. 5.1
SUGGESTED USER ACTION FOR RUNNING ON UNCORRECTED VERSION:
Use SHELL63.
COMMENTS:
AUTHOR/CORRECTOR: DATE: May 28, 1996
Charles Rajakumar
REVIEWED BY QA: DATE: May 28, 1996
William J. Bryan
APPROVAL: DATE: May 28, 1996
John A. Swanson
*_/If a product name is not included in the "first incorrect version",
the full ANSYS program is implied. For products not listed, this error
does not apply, but see the reverse side for equivalent product
designations.
Unless noted otherwise, this error report also applies to all revisions
after the first incorrect one and prior to the corrected revision. All
revisions 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 revision
identifiers.
ANSYS[Registered Trademark] CLASS3 ERROR REPORT
ERROR NO: 96-19
KEYWORDS: P-METHOD PCONV NODE COMPONENT
DESCRIPTION OF ERROR:
If a node component name is used in the NODE field for the PCONV
command the node where convergence checking is to be performed, the
component is not used.
FIRST INCORRECT VERSION(S):*_/ CORRECTED IN:*_/
Rev. 5.2 Release 5.3
SUGGESTED USER ACTION FOR RUNNING ON UNCORRECTED VERSION:
Use multiple PCONV commands to specify each node for convergence
checking. Up to 10 specifications may be input.
COMMENTS:
Node components are defined using the CM command.
AUTHOR/CORRECTOR: DATE: May 28, 1996
Christopher W. Aiken
REVIEWED BY QA: DATE: May 28, 1996
William J. Bryan
APPROVAL: DATE: May 28, 1996
John A. Swanson
*_/If a product name is not incLuded in the "first incorrect version"
the full ANSYS program is implied. For products not listed, this error
does not apply, but see the reverse side for equivalent product
designations.
UnLess noted otherwise, this error report also appLies to all revisions
after the first incorrect one and prior to the corrected revision. All
revisions 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 revision
identifiers.
ANSYS[Registered Trademark] CLASS3 ERROR REPORT
ERROR NO: 96-20
KEYWORDS: THERMAL CONVECTION DELETED FILM COEFFICIENT
DESCRIPTION OF ERROR:
In a thermal analysis, the conductivity matrix does not get updated
to reflect the absence of a convection surface
if
1. either
A. NROPT.AUTO [default] is used and no thermal material
properties are tempterature-dependent and no radiation is
present;
or B. IMPORTANT is used;
and 2. the film coefficient of a convection surface is deleted in
the second or later load step (by using either the
SFDELE/SFABELE/SFEDELE/SFLDELE commands; or resetting the
film coefficient to zero);
This erroneous conductivity matrix will continue to be used (unless the
film coefficient is again changed to a nonzero value), yielding incorrect
results.
FIRST INCORRECT VERSION(S):*_/ CORRECTED IN:*_/
Rev. 5.1 Release 5.3
ANSYS/THERMAL Rev. 5.2 ANSYS/THERMAL Release 5.3
SUGGESTED USER ACTION FOR RUNNING ON UNCORRECTED VERSION:
Instead of totally removing the film coefficient, simply reduce it
to a very small value. Alternatively, NROPT,MODI can be used.
COMMENTS:
Ramping of a film coefficient down to zero in one load step with a
series of substeps is correctly handled.
AUTHOR/CORRECTOR: DATE: May 28, 1996
Peter Kohnke
REVIEWED BY QA: DATE: May 28, 1996
William J. Bryan
APPROVAL: DATE: May 28, 1996
John A. Swanson
*_/If a product name is not included in the "first incorrect version",
the full ANSYS program is implied. For products not Listed, this error
does not apply, but see the reverse side for equivalent product
designations.
Unless noted otherwise, this error report also applies to all revisions
after the first incorrect one and prior to the corrected revision. All
revisions 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 revision
identifiers.
ANSYS QA NOTICE
NOTICE NO: QA96-04
SUBJECT: CFD FLUID FLOTRAN MAGNETIC HARMONIC COUPLED FIELD
DESCRIPTION:
If the LDREAD command is used to transfer heat generation rates from
an ANSYS harmonic magnetic analysis to a FLOTRAN analysis, LDREAD fails
to transfer the imaginary portion of the heat generation rate. Note -
for such cases, the following warning message is produced:
Invalid KIMG key ( 2 ) for load label HGEN, when using FLOTRAN
elements
Valid key is 0.
The KIMG key is reset to 0.
AFFECTED VERSION: Rev. 5.2
COMMENTS:
The Macro flohgen.mac is available on the ANSYS HomePage
(http://www.ansys.com) in the Customer Information Area. It may be used
to correctly transfer heat generation loads from an ANSYS harmonic
magnetic analysis to FLOTRAN.
AUTHOR: DATE: May 28, 1996
Mike Normansell
REVIEWED BY QA: DATE: May 28, 1996
William J. Bryan
APPROVAL: DATE: May 28, 1996
John Swanson
Table "ANSYS 5.1 CLASS3 ERROR SUMMARY BY REPORT NUMBER," 9 Pages
omitted.
Table "ANSYS 5.2 CLASS3 ERROR SUMMARY BY REPORT NUMBER," 4 Pages
omitted.
*** END OF DOCUMENT ***
