电子设备橡胶隔振器静动态特性分析方法研究

橡胶隔振器采用粘弹性阻尼材料进行振动、冲击防护与控制,传统做法是依靠大量的经验公式和试验数据进行试错设计,效率低,成本高.文中针对电子设备中橡胶隔振器的静动态特性分析方法问题,系统建立了一套基于非线性有限元方法的求解策略.以某型橡胶隔振器为例,获得了其静刚度、蠕变和松弛特性等静态特性以及迟滞回环、谐响应和冲击响应等动态特性,并对橡胶隔振器设计和选型中的2个关键参数(橡胶超弹性和匹配质量)进行了讨论,可供橡胶隔振器设计方法研究参考.

Study on Static and Dynamic Characteristics of Rubber Isolator for Electronic Equipment

The viscoelastic damping material is used to provide vibration/ shock protection and control of the rubber isolator. Traditionally, trial and error design are carried out by a large number of empirical formulas and test data, which is characterized by low efficiency and high cost. Aiming at the static and dynamic characteristics analysis problem of the rubber isolators in electronic equipment, a nonlinear finite element method is proposed to solve the problem. By taking a rubber isolator as an example, the static characteristics such as static stiffness, creep and relaxation properties and the dynamic characteristics such as hysteresis loop, harmonic response and impact response are obtained. And the two key parameters ( rubber hyperelasticity and matching mass) in the design and selection of the rubber isolator are discussed, which can provide reference for the design method study of the rubber isolator.