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Analytical and experimental modal analysis of orthotropic plate-type structures
The vibration characteristics of orthotropic plate-type structures, using finite element and experimental modal analysis techniques, are presented. The plate bending model consists of a high-order, extremely efficient, triangular element in the development of both the mass and the stiffness matrices. This element, with five degrees of freedom per node, can easily be adapted to include shell bending analysis. The finite element solution technique has been used to analyze both the static and the dynamic responses of variously supported composite plates. The experimentally derived results are obtained using classical modal analysis techniques. Frequency response function data was measured using either random or transient force excitation input while measuring the response with an accelerometer at discrete test locations. Once the frequency response functions relating points of interest on the structure were measured, they were analytically curve fit to obtain the modal properties. The experimentally derived modal parameters associated with composite plate and shell structures were then compared to the finite elemente results.
Analytical and experimental modal analysis of orthotropic plate-type structures
The vibration characteristics of orthotropic plate-type structures, using finite element and experimental modal analysis techniques, are presented. The plate bending model consists of a high-order, extremely efficient, triangular element in the development of both the mass and the stiffness matrices. This element, with five degrees of freedom per node, can easily be adapted to include shell bending analysis. The finite element solution technique has been used to analyze both the static and the dynamic responses of variously supported composite plates. The experimentally derived results are obtained using classical modal analysis techniques. Frequency response function data was measured using either random or transient force excitation input while measuring the response with an accelerometer at discrete test locations. Once the frequency response functions relating points of interest on the structure were measured, they were analytically curve fit to obtain the modal properties. The experimentally derived modal parameters associated with composite plate and shell structures were then compared to the finite elemente results.
Analytical and experimental modal analysis of orthotropic plate-type structures
Analytische und experimentelle Modalanalyse von Konstruktionen aus orthotropen Platten
Blessen, D.A. (Autor:in) / Pardeon, G.C. (Autor:in)
1986
6 Seiten, 7 Bilder, 6 Tabellen, 8 Quellen
Aufsatz (Konferenz)
Englisch
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