Receptance Method for the Sensitivity Analysis of Critical Speeds to Rotor Support Stiffness

[+] Author and Article Information
Chen-Kai Su

Department of Mechanical Engineering, National Taiwan Institute of Technology, Taipei, Taiwan

Shyh-Chin Huang

Department of Mechanical Engineering, National Taiwan Institute of Technology, 43, Keelung Rd., Sec. 4, Taipei, Taiwan, 10772

J. Eng. Gas Turbines Power 119(3), 736-739 (Jul 01, 1997) (4 pages) doi:10.1115/1.2817051 History: Received April 08, 1996; Online November 19, 2007


A rotor system can be studied via various approaches, e.g., FEM, the transfer matrix method, etc. The receptance method has been one of the methods used for frequency analysis of rotors. The authors, herein, have shown an application of the receptance matrix for sensitivity analysis. Examples of critical speed sensitivity to support stiffness were illustrated and a computing algorithm was developed. Numerical examples proved the approach to be valuable for rotor engineers in quick evaluation and understanding of the support effects.

Copyright © 1997 by The American Society of Mechanical Engineers
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