Structural-Acoustic Design at High Frequency Using the Energy Finite Element Method

Author:

Bernhard R. J.1,Huff J. E.1

Affiliation:

1. Ray W. Herrick Laboratories, School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907-1077

Abstract

Energy flow analysis methods, particularly as implemented using the finite element method, are useful as design techniques for high frequency structural-acoustic applications. In this paper, the derivation of energy flow analysis techniques are summarized. Particular attention is given to the specification of joint models for situations where there is a discontinuity in either geometric properties or material properties. The finite element formulation of this approach is also summarized. A case study is included to illustrate the utility of the method as a design technique.

Publisher

ASME International

Subject

General Engineering

Reference19 articles.

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2. Belov V. D. , RybakS. A., and TartakovskiiB. D., 1977, “Propagation of Vibrational Energy in Absorbing Structures,” J. of Soviet Physics Acoustics, Vol. 23, No. 2, pp. 115–119.

3. Bouthier, O. M., 1992, Energetics of Vibrating Systems, Ph.D. Thesis, Purdue University.

4. Bouthier O. M. , and BernhardR. J., 1995a, “Simple Models of Energy Flow in Membranes,” J. of Sound and Vibration, Vol. 182, No. 1, pp. 129–147.

5. Bouthier O. M. , and BernhardR. J., 1995b, “Simple Models of Energy Flow in Plates,” J. of Sound and Vibration, Vol. 182, No. 1, pp. 149–166.

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