Simple method for extracting normal modes

S. Y. Chen, Ming-Shaung Ju, Y. G. Tsuei

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

A simple method for extracting the normal modes of structures is developed. The frequency response function relation between the complex and the normal modes is derived and a technique is developed to calculate the normal modes from the identified (damped) complex modes, In this method, only the magnitude and phase information at resonant frequencies are needed for extracting the normal mode shapes. A numerical example is employed to illustrate the theory. The results indicate that this method is more robust than other methods when the frequency response measurements are contaminated with noise.

Original languageEnglish
Title of host publicationVibration, Shock, Damage, and Identification of Mechanical Systems
PublisherPubl by ASME
Pages1-8
Number of pages8
ISBN (Print)0791811808
Publication statusPublished - 1993 Dec 1
EventProceedings of the 14th Biennial ASME Design Technical Conference on Mechanical Vibration and Noise - Albuquerque, NM, USA
Duration: 1993 Sep 191993 Sep 22

Publication series

NameAmerican Society of Mechanical Engineers, Design Engineering Division (Publication) DE
Volume64

Other

OtherProceedings of the 14th Biennial ASME Design Technical Conference on Mechanical Vibration and Noise
CityAlbuquerque, NM, USA
Period93-09-1993-09-22

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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