本文从材料的应力-应变曲线不是直线,而是一条封闭的滞后回线着手,推导出粘弹性材料的滞后回线为一椭园曲线,其每周的振动能量损失为△E_H=πX~2K′η并且讨论了弹性模量E、损失系数η,随温度、振动频率的变化关系。 文章的第三部分,着重介绍了粘弹性材料夹心结构的特点及计算。最后,就使用方面谈了点个人的看法。 In this paper, the stress-strain curve of the material is not a straight line but a closed hysteresis loop. It is deduced that the hysteresis loop of viscoelastic material is an ellipse curve, and its weekly vibration energy loss is △E_H=πX~2K. ’η and discussed the elastic modulus E, loss coefficient η, with the temperature, vibration frequency changes in the relationship. The third part of the article focuses on the characteristics and calculations of the sandwich structure of viscoelastic materials. In the end, I talked about personal opinions about the use.