Structural Optimization by Density Distribution for Maximization of Natural Frequency

[+] Author and Article Information
Yoshiko Kawabe, Shinobu Yoshida

Mechanical Engineering Research Laboratory, Hitachi, Ltd., Tsuchiura, Ibaraki, Japan

J. Mech. Des 118(1), 157-159 (Mar 01, 1996) (3 pages) doi:10.1115/1.2826849 History: Received January 01, 1994; Revised June 01, 1995; Online December 11, 2007


This paper proposes a basic method for designing light and rigid structures that have a maximum natural frequency for a designated mode. A design variable “density,” related to the material properties of a three-dimensional solid element, is introduced into the finite element method (FEM). Thus, a structure is expressed as a density distribution inside its design domain, and the optimal structure is obtained by searching for the most suitable such distribution.

Copyright © 1996 by The American Society of Mechanical Engineers
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