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首页> 外文期刊>JSME International Journal. Series C, Mechanical Systems, Machine Elements and Manufacturing >A Double Cantilever Sandwich Beam Method for Evaluating Dynamic Characteristics of Rubber Materials
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A Double Cantilever Sandwich Beam Method for Evaluating Dynamic Characteristics of Rubber Materials

机译：评估橡胶材料动力特性的双悬臂夹层梁法

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摘要

A double cantilever sandwich-beam method is proposed for the evaluation of the frequency dependence of the dynamic elastic modulus and material loss factor of rubber materials. The flexural vibration of a double cantilever sandwich-beam specimen with an inserted rubber layer was studied using a finite element simulation in combination with a sine-sweep test. Effects of the rubber layer length on the dynamic characteristics were also investigated such that reliable values were measured when the length of the inserted rubber layer was larger than or equal to 50% of the effective specimen length. The values were compared with those obtained by dynamic mechanical analysis and a simple resonant test. The relationships of the dynamic characteristics of rubber materials with frequency could be determined using the least squares estimation method.
机译：为了评价橡胶材料的动态弹性模量和材料损耗因子与频率的关系，提出了一种双悬臂夹层梁法。使用有限元模拟结合正弦扫描试验研究了带有橡胶层的双悬臂夹层梁试样的弯曲振动。还研究了橡胶层长度对动力学特性的影响，以便当插入的橡胶层的长度大于或等于有效样本长度的50％时，可以测量可靠值。将这些值与通过动态力学分析和简单的共振测试获得的值进行比较。橡胶材料的动态特性与频率的关系可以使用最小二乘估计法确定。

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