Measurement,simulation on dynamic characteristics of a wire gauze–fluid damping shock absorber |
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| Affiliation: | 1. Research Center of Micro-Nano Science and Technology, School of Mechanical Engineering, JiangSu University, Zhenjiang 212013, PR China;2. Research Center of Advanced Design and Manufacturing, Department of Electronic Machinery, Guilin University of Electronic Technology, PR China;3. School of Automobile Engineering, University of Shanghai for Science and Technology, PR China |
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| Abstract: | A new kind of shock absorber with Coulomb–fluid damping through coupling oil, wire gauze, rubber and spring by ingenious tactics is designed for reinforcement of electronic-information equipment in atrocious vibration and impact. The physical mechanism of the shock absorber is systematically investigated. The key-model machine shows complex non-linear dynamic characteristics in multi-parameter coupling dynamic test; otherwise, it has a good dynamic performance for attenuating vibration and resisting violent impact. Based on this, the non-linear dynamic model for attenuating vibration mode of the shock absorber is presented by analysing coupling physical mechanism of fluid and Coulomb friction and other factors for designing the shock absorber with high validity. The analytical results obtained in experimental data have been compared with the numerical ones obtained by performing the Runge–Kutta method with the mathematical model. As the model results agree well with the test data, it can be used for engineering design. |
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