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The Study and Application on Vibration Character of Metal-rubber Vibration Absorber

Author: YangYe
Tutor: FanWenXin
School: University of North
Course: Mechanical Design and Theory
Keywords: Metal Rubber Molding process Dry friction damping Mathematical model
CLC: TB535.1
Type: Master's thesis
Year: 2011
Downloads: 177
Quote: 0
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Abstract


Metal rubber material is developed in 1960s , the functional structure of a porous damping material, its interior by interleaved space formed wire mesh structure , this structure is very similar to the rubber polymer structure and having rubber characteristics . Metal rubber material to rely on the relative slippage between the wire generates the dry friction dissipation vibration energy to achieve the role of damping . It has high damping , easily made ??into a variety of complex shapes , and environmental adaptability . This technology in many developed countries has been widely successful application , and actively carry out research work and promote the application of the metal rubber material in our country , will have great significance . In this paper, the preparation process of metal rubber damping elements , the main parameters that affect the performance of the network block of metal rubber , and to study the the metal rubber characteristics under different structural parameters ; combination of metal rubber damping element nonlinear dry friction generation mechanism spring theory based on a theoretical analysis of the stiffness characteristics of metal rubber material , metal rubber material constitutive relations , and provides a theoretical basis for the development of the product design and application of metal rubber material . This paper , the use of a new method of modeling for metal rubber shock absorber damping elastic element ( net block ) , the establishment of a mathematical model . Using this method, can be obtained at different displacement loading ( or unloading) , metal rubber the network block deformation its load nonlinear relationship. Through the comparison of experimental data and build mathematical models to prove they have better consistency , to verify the correctness of the model . AAW-400 metal rubber damper for a certain type of engine design , metal rubber damper static and dynamic tests , analysis of the nonlinear stiffness characteristics of the shock absorber damping characteristics , verify the type damping has a good vibration damping effect .

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CLC: > Industrial Technology > General industrial technology > Acoustic engineering > Vibration, noise and its control > Vibration and noise control and its use > Vibration isolation, damping materials and structures
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