用振动梁方法测量粘弹性材料的复模量和粘弹性参数

Measurement of Complex Modulus and Parameters of Viscoelastic Materials by Means of Vibrating Beam

本文利用共振梁方法,通过对一点响应、相位滞后和共振频率的测量,可以获得粘弹性材料的复模量以及标准线性固体模型的三个参数,即松弛模量、松弛系数和蠕变系数.实验结果表明,实验原理正确,测试系统可靠而且简单实用.

The complex modulus and three viscoelastic parameters of standard linear model of solid are obtained by measuring the response, phase retardation at a point on beam vibrating at resonant frequency. It is shown that this method is simple, reliable and practically applicable.