A Method for Modifying Dynamic Properties of Undamped Mechanical Systems

[+] Author and Article Information
Y. G. Tsuei

Structural Dynamics Research Laboratory, Department of Mechanical and Industrial Engineering, University of Cincinnati, Cincinnati, Ohio 45221-0072

Eric K. L. Yee

SESD, Naval Air Engineering Center, Lakehurst, NJ 08733

J. Dyn. Sys., Meas., Control 111(3), 403-408 (Sep 01, 1989) (6 pages) doi:10.1115/1.3153068 History: Received September 01, 1987; Online July 21, 2009


A method for the parametric study of the eigen frequencies and eigen vectors of a dynamic system is presented. The technique is based on the force response of the original dynamic system and gives a global picture for the behavior of the system with respect to the mass and stiffness parameters. It provides the sensitivity and feasibility of shifting the eigen frequency to a designed value; thus, it can be applied to the modal modification of a dynamic system. Because no iteration is required, the method is efficient.

Copyright © 1989 by ASME
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