SBIR 95-1 SOLICITATION
PROJECT SUMMARY
Contract Id:
Proposal Number:
Project Title:
ROTATING SHAFT STABILITY ANALYSIS MODEL (SHASAM)
Technical Abstract:
ORBITEC proposes to develop a new tool for condition monitoring and design of
rotating machinery. The ultimate objective of this research is to develop a PC
and microprocessor based expert system for determining and evaluating the
dynamic and stability characteristics of elastic shaft/disc/bearing systems.
The approach is based on previous research using Liapunov's direct method for
calculating critical speeds and employing the variation of parameters
technique for vibrational analysis. This research has shown repeatedly that
continuum models of elastic shafts and discs can be accurately modeled by very
assumed mode terms, greatly reducing the computational burden for obtaining
key information. The proposed Phase I project will develop, test, and evaluate
a PC based program for a two bearing elastic shaft/disc system supported on
anisotropic elastic bearings with cross-coupled stiffness and sampling included
as a preliminary model.
Potential Commercial Applications:
The Rotating Shaft Stability Analysis Model (SHASAM) provides a powerful new
tool to quickly analyze shaft stability for monitoring and/or design purposes.
Potential applications include aircraft and helicopter engines, rocket
engines, and power generation machinery. ORBITEC plans to market SHASAM as a
software package and analysis service, and to produce and sell a
microprocessor based rotating machinery device.
Name and Address of Offeror:
Orbital Technologies Corporation (ORBITEC) After 1 December 1995:
402 Gammon Place 1212 Fourier Drive
Madison, WI 53719 Madison, WI 53717
Small Business Innovation Research Program (SBIR) &
Small Business Technology Transfer Program (STTR) Programs
Electronic Management System (EMS)
National Aeronautics and Space Administration (NASA)
The SBIR/STTR EMS site is maintained by Steve
Hu, Hughes STX.
For comments and questions, contact
webmaster@sbir.hq.nasa.gov.
Updated: Feb. 7, 1996