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RESEARCH PAPERS

The Combined Closed Form-Perturbation Approach to the Analysis of Mistuned Bladed Disks

[+] Author and Article Information
M. P. Mignolet, C.-C. Lin

Dept. of Mechanical and Aerospace Engineering, Arizona State University, Tempe, AZ 85287-6106

J. Turbomach 115(4), 771-780 (Oct 01, 1993) (10 pages) doi:10.1115/1.2929315 History: Received February 11, 1992; Online June 09, 2008

Abstract

A two-step method is presented for the determination of reliable approximations of the probability density function of the forced response of a randomly mistuned bladed disk. Under the assumption of linearity, an integral representation of the probability density function of the blade amplitude is first derived. Then, deterministic perturbation techniques are employed to produce simple approximations of this function. The adequacy of the method is demonstrated by comparing several approximate solutions with simulation results.

Copyright © 1993 by The American Society of Mechanical Engineers
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