On the Identification of a Harmonic Force on a Viscoelastic Plate From Response Data

[+] Author and Article Information
J. D’Cruz, J. D. C. Crisp

Department of Mechanical Engineering, Monash University, Clayton, Victoria 3168, Australia

T. G. Ryall

Aeronautical Research Laboratory, Defence Science and Technology Organisation, Fishermens Bend, Victoria 3207, Australia

J. Appl. Mech 59(4), 722-729 (Dec 01, 1992) (8 pages) doi:10.1115/1.2894034 History: Received January 25, 1991; Revised February 21, 1992; Online March 31, 2008


The problem of determining the force acting on a structure from measurements of the response of the structure to the force is an inverse problem. Presented is a method for determining the location, magnitude, and phase of a harmonic point force acting on a simply-supported classical viscoelastic rectangular plate from a number of displacement readings at discrete points on the plate. Presented also is a demonstration of the robustness of the solution technique to the effects of measurement noise as well as a means by which problems involving more general structural and loading configurations may be solved.

Copyright © 1992 by The American Society of Mechanical Engineers
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