应用于高速转子系统的金属橡胶阻尼环动力特性分析

摘要

针对金属橡胶构件的非线性特性及结构不同时弹性阻尼力学性能不同的特点,利用实验和理论相结合的方法建立了金属橡胶构件迟滞回线边界变形过程力学模型,推导了不同相对密度金属橡胶构件非线性迟滞恢复力表达式.分析了简谐激励载荷作用下金属橡胶阻尼环动力学特性,对该阻尼环进行了实验研究,研究了存在预变形情况下阻尼环的弹性阻尼性能,实验和理论分析结果基本一致,为该种阻尼环的实际应用奠定了理论基础.%Based on the nonlinearity of metal rubber components and its different elastic damping mechanical properties with different structures,the mechanical model of hysteresis loop boundary deformation process of metal rubber components with different relative densities was established by the experiment method combining theory.Dynamic characteristics of metal rubber damping ring were analyzed under harmonic excitation load and experimental study was conducted.The elastic damping performance of the damper with preliminary deformation was researched and the experimental result showed good agreement with the theoretical analysis one,which provides a theoretical basis for practical application of this kind of damper.