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TECHNICAL BRIEFS

Modal Analysis of Multiple Eigenvalue Systems by Data Dependent Systems

[+] Author and Article Information
N. P. Mehta, S. M. Pandit

Mechanical Engineering, Engineering Mechanics Department, Michigan Technological University, Houghton, MI 49931

J. Vib. Acoust 113(3), 416-417 (Jul 01, 1991) (2 pages) doi:10.1115/1.2930200 History: Received April 01, 1990; Online June 17, 2008

Abstract

This note outlines an extension of the Data Dependent Systems (DDS) methodology to the modal analysis of vibratory systems with eigenvalues of arbitrary multiplicity. DDS [1, 2] is a time-series approach to system analysis that combines a rational modeling strategy with elements of linear system theory. The use of an appropriate state-space setting makes it a powerful tool for system identification, and the approach has been successfully applied to the modal characterization of mechanical systems in references [2–4], which provide many examples with real life data.

Copyright © 1991 by The American Society of Mechanical Engineers
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