Optimum Design of Rotor-Bearing Systems With Eigenvalue Constraints

[+] Author and Article Information
T.-Y. Chen

Department of Mechanical Engineering, National Chung-Hsing University, Taichung, Taiwan 40227

B. P. Wang

Department of Mechanical Engineering, The University of Texas at Arlington, Arlington, TX 76019

J. Eng. Gas Turbines Power 115(2), 256-260 (Apr 01, 1993) (5 pages) doi:10.1115/1.2906702 History: Received February 24, 1992; Online April 24, 2008


The analysis and design of rotor-bearing systems with gyroscopic effects are discussed in this paper. The original problem of this nonproportionally damped mechanism is transformed into the state space form so that the transformed problem is similar to the eigenvalue problem for an undamped system. It can be easily solved by widely available eigensolvers and the eigenvalue sensitivities needed for the design optimization can also be obtained conveniently using the transformed form. The sequential linear programming technique is employed to solve the design optimization problem. The easy implementation of this proposed approach with a general purpose finite element program is shown in the solution algorithm.

Copyright © 1993 by The American Society of Mechanical Engineers
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