Spectral-Element Method for Levy-Type Plates Subject to Dynamic Loads
Publication: Journal of Engineering Mechanics
Volume 125, Issue 2
Abstract
Spectral-element method (SEM) is applied for the vibration analysis of the Levy-type rectangular plates subject to distributed dynamic loads. In the solution procedure, both FFT and inverse FFT computer algorithms are efficiently used to obtain the dynamic responses in time domain. Distributed dynamic load is approximated, as the superposition of equivalent dynamic line loads and the spatial coordinate dependence of equivalent line loads is removed by (spatial) FFT. This procedure transforms the original plate (two-dimensional) problem into an effective beam (one-dimensional) problem so that the solution procedure for one-dimensional structures can be used. Numerical tests show that SEM provides very accurate solutions when compared with conventional finite element solutions.
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Information & Authors
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Published In
Journal of Engineering Mechanics
Volume 125 • Issue 2 • February 1999
Pages: 243 - 247
History
Published online: Feb 1, 1999
Published in print: Feb 1999
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