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Numerical and experimental study of noise generated by a vibrating plate

1991 , Estorff, O. von , Homm, A. , Bartels, F.

Applying an indirect Boundary Element Method the sound radiation of a vibrating cantilever plate is investigated. The numerically obtained results are compared with measured data in order to show the accuracy and applicability of the numerical approach. The study clearly enhances the confidence in the computational solution of noise problems which are of particular importance in connection with the qualification of large spacecraft structures like HERMES.

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Publication

Sound radiation of a cantilever plate - comparisons of BEM results with experimental data

1991 , Estorff, O. von , Homm, A. , Bartels, F.

The sound radiation of a vibrating cantilever plate is investigated by a combined Finite Element / Boundary Element approach. First, in a FE-analysis the mode shapes of the plate are determined. Second, for three selected frequencies the acoustic pressure distribution around the plate is calculated using an indirect boundary element formulation. The results are compared with experimental data in order to show the accuracy and applicability of the numerical approach.