Measurement, Analysis and Modeling of the Dynamic Properties of Materials

Yanchu Xu; Ahid Nashif

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Measurement, Analysis and Modeling of the Dynamic Properties of Materials

机译：材料动态特性的测量，分析和建模

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A new method to measure, analyze, and model the dynamic properties of viscoelastic materials is described. The method is based on the vibrating beam technique (ASTM E756) which has been used for determining dynamic complex modulus properties over wide temperature and frequency ranges. The advantage of this new method is that it is a completely PC based system which contains the data acquisition program for the response of the beam, the finite element analysis program to compute the material properties and the characterization of the properties in term of analytical functions based on the thermorheologically complex viscoelastic model. The output of the curve fitted data is then input to the database of materials library for future use as needed in the analysis of different dynamic systems which incorporate such materials for noise and vibration control. Examples of how this system can be used to build a database on the properties of a variety of materials will be described.

机译：描述了一种测量，分析和建模粘弹性材料动力学特性的新方法。该方法基于振动梁技术（ASTM E756），该技术已用于确定较宽的温度和频率范围内的动态复模量特性。这种新方法的优势在于，它是一个完全基于PC的系统，其中包含用于光束响应的数据采集程序，用于计算材料特性的有限元分析程序以及根据解析函数计算特性的特性。热流变复杂的粘弹性模型。然后，将曲线拟合数据的输出输入到材料库的数据库中，以供将来在分析各种动态系统的过程中使用，这些动态系统结合了用于噪声和振动控制的此类材料。将描述如何使用该系统来构建有关各种材料特性的数据库的示例。

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《Sound & Vibration》 |1996年第7期|p.20-23|共4页
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Yanchu Xu; Ahid Nashif;
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中图分类声学;
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Measurement, Analysis and Modeling of the Dynamic Properties of Materials

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