Three diamentional model of restoring force of metal rubber material

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Journal of Vibration and Shock ›› 2011, Vol. 30 ›› Issue (8) : 203-206,.

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Three diamentional model of restoring force of metal rubber material

LIU Yuan-fang;BAI Hong-bo;LI Dong-wei;WANG You-yan;TAO Shuai

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Abstract

Based on the analysis of a great deal of experimental data,a method of establishing three-dimensional dynamic model of restoring force of metal rubber is presented.Through interpolation fitting of experimental data and theoretical analysis,the analytic equation in which the relationship of velocity,displacement and restoring force is described is built.We consider that restoring force is composed of three components which are respectively linear elastic force with positive stiffness , non-linear damping force and non-linear elastic force with negative stiffness which is related to the square of the velocity.The physical meaning of the three components is analysed.Experimental results indicate that the proposed model can describe and analyse the restoring force of metal rubber more intuitively and exactly.The disadvantage that the present models are simple and the parameter identificating is complex is overcome.

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metal rubber / three-dimensional model / interpolation fitting

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LIU Yuan-fang;BAI Hong-bo;LI Dong-wei;WANG You-yan;TAO Shuai. Three diamentional model of restoring force of metal rubber material[J]. Journal of Vibration and Shock, 2011, 30(8): 203-206,