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首页> 外文期刊>International Journal of Engineering Research and Applications >FEA based Dissipation Energy and Temperature Distribution of Rubber Bushing
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FEA based Dissipation Energy and Temperature Distribution of Rubber Bushing

机译：基于FEA的橡胶衬套耗散能和温度分布

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摘要

Rubber bushings used in the vehicle or aerospace can reduce the noise and vibration and absorb the shocks. The heat accumulation in the rubber components is attributed to the nonlinear mechanical behavior of rubber and leads to degeneration of mechanical properties. The viscoelastic damping is treated as the major mechanism of dissipation energy, which is heat source of temperature rising in bushing. A finite element method is expanded from elastic structure to viscoelastic structure and computes the dissipation energy distribution in the rubber core. Based on that heat source, the temperature distribution of rubber bushing under radial harmonic excitation has been calculated using finite volume method. The frequency and amplitude effect on dissipation energy and temperature distribution are described. The radial dynamic testing is carried out and the temperature is recorded using thermal imager to evaluate the simulation. As complement, the dynamic torsional testing is also carried out explore the possible failure zone of rubber bushing under different types of loading.
机译：汽车或航空航天中使用的橡胶衬套可以减少噪音和振动并吸收震动。橡胶组分中的热量积聚归因于橡胶的非线性机械性能，并导致机械性能下降。粘弹性阻尼被认为是耗散能量的主要机理，它是套管中温度升高的热源。有限元方法从弹性结构扩展到粘弹性结构，并计算了橡胶芯中的耗散能量分布。基于该热源，利用有限体积法计算了径向谐波激励下橡胶衬套的温度分布。描述了频率和幅度对耗散能量和温度分布的影响。进行了径向动态测试，并使用热成像仪记录了温度，以评估仿真结果。作为补充，还进行了动态扭转试验，以探索在不同类型的载荷下橡胶衬套的可能失效区域。

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