The vibration analysis of the plate with spring -damper based on Wave Based Method

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Journal of Vibration and Shock ›› 2016, Vol. 35 ›› Issue (14) : 140-144.

Xia Xiaojun1, 2, Xu Zhongming1, 2, Zhang Zhifei 1, 2, He Yansong1, 2

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Abstract

A wave based prediction technique for spring-damper plate is proposed based on the theory of Kirchhoff and Wave Based Method (WBM) via converting the additional spring – damper structure into a point force with the change of frequency and amplitude of displacement, the system matrix for computing the vibration response of the plate with a spring-damper is constructed on account of WBM, subsequently the bending vibration response of the pate is obtained. With a four edges simply supported rectangular plate as an example, the method is verified via the comparison with the vibration response of reference point at 50-600Hz implemented by analytic method and finite element method respectively. The vibration response of plate with different number of spring-damper structure is computed to find the effect of the adding structure. The analysis results indicates that WBM is valid on the prediction for bending vibration response of the spring -damp plate. Contrast with FEM, the WBM can achieve the mid-frequency bending vibration response of a spring -damp plate with higher accuracy and converge rate.

Key words

WBM / spring –damper / bending vibration / plate

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Xia Xiaojun1, 2, Xu Zhongming1, 2, Zhang Zhifei 1, 2, He Yansong1, 2. The vibration analysis of the plate with spring -damper based on Wave Based Method[J]. Journal of Vibration and Shock, 2016, 35(14): 140-144

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