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Measured free vibrations of partially clamped, square plates
Experiments were designed to measure the free, transverse vibrations for square, thin elastic plates with two types of edge support configurations. One configuration was fully clamped on three edges and free on the fourth edge (CCCF), and the other was fully clamped on two adjacent edges and free on the other two edges (CCFF). For these respective configurations, up to 18 frequencies and the corresponding modal contours were measured using a scanning laser-Doppler velocimeter, acoustic excitation, and computer sofware. Measurements for the lowest five non-dimensional frequency parameters lambda and their node lines compared favorably to the corresponding theoretical results available in the open literature. Curve veering may be the reason that several of the crisp modal contours at some higher excitation frequencies for the CCFF configuration were observed to be neither symmetric nor antisymmetric about the plate's diagonal line of geometric symmetry.
Measured free vibrations of partially clamped, square plates
Experiments were designed to measure the free, transverse vibrations for square, thin elastic plates with two types of edge support configurations. One configuration was fully clamped on three edges and free on the fourth edge (CCCF), and the other was fully clamped on two adjacent edges and free on the other two edges (CCFF). For these respective configurations, up to 18 frequencies and the corresponding modal contours were measured using a scanning laser-Doppler velocimeter, acoustic excitation, and computer sofware. Measurements for the lowest five non-dimensional frequency parameters lambda and their node lines compared favorably to the corresponding theoretical results available in the open literature. Curve veering may be the reason that several of the crisp modal contours at some higher excitation frequencies for the CCFF configuration were observed to be neither symmetric nor antisymmetric about the plate's diagonal line of geometric symmetry.
Measured free vibrations of partially clamped, square plates
Messung der freien Schwingungen von partiell festgeklemmten, quadratischen Platten
Wilson, J.F. (author) / Henry, J.K. (author) / Clark, R.L. (author)
Journal of Sound and Vibration ; 231 ; 1311-1320
2000
10 Seiten, 5 Bilder, 1 Tabelle, 12 Quellen
Article (Journal)
English
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