On the calculation of natural frequencies of microstructures using the DRBEM

On the calculation of natural frequencies of microstructures using the DRBEM

Author(s): T.R. Bridges & L.C. Wrobel
Abstract:
calculation of natural frequencies of microstructures using the DRBEM T.R.

Bridges & L.C.

Wrobel Wessex Institute of Technology, University of Portsmouth, Ashurst Lodge, Ashurst, Southampton, S040 7AA, UK 1 Introduction This paper discusses the calculation of the natural frequencies of thin structural compo- nents using the Dual Reciprocity boundary element method.

This technique, introduced by Nardini and Brebbia in 1982, has certain advantages over other boundary element techniques in that it produces a linear, time independent, boundary only system which is compatible with standard 'black box' eigenvalue solvers.

Results are presented which provide comparison with theoretical approximations and show how the method behaves for a more realistic application, a microstructure, for which finite element results are available. Traditional integral equation formulations, involving the elastodynamic fundamental solution, which is complex valued and frequency dependent...

Pages: 8
Size: 663 kb
Paper DOI: 10.2495/BE940581

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Boundary Element Method XVI

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