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RESEARCH PAPERS: Vibration and Sound

Optimal Placement of Critical Speeds in Rotor-Bearing Systems

[+] Author and Article Information
M. Rajan, S. D. Rajan, H. D. Nelson, W. J. Chen

College of Engineering and Applied Sciences, Arizona State University, Tempe, AZ 85287

J. Vib., Acoust., Stress, and Reliab 109(2), 152-157 (Apr 01, 1987) (6 pages) doi:10.1115/1.3269407 History: Received December 23, 1986; Online November 23, 2009

Abstract

The design of a rotor-bearing system is an iterative process in which the parameters that influence the design are modified until the desired design objectives are achieved. Primary among the design objectives is the minimization of the response amplitude within the operating range of the rotor system. An automated design procedure for the optimal placement of the critical speeds of a rotor is presented. The desired design objective is cast as a nonlinear programming problem that minimizes an objective function subject to constraints. The optimization program interacts with an analysis program to search for the feasible optimal design.

Copyright © 1987 by ASME
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