金属橡胶冲击隔振系统试验研究

金属橡胶抗冲击隔振器利用干摩擦和弹性变形消耗冲击能量，实现缓冲减振的目的。本文针对某飞行器抗冲击隔振的需求，设计了金属橡胶抗冲击隔振器，并进行了冲击试验，结果表明最大加速度响应和冲击隔离系数随着冲击时间增加而加大，同时冲击隔离系数受冲击载荷的大小影响。在冲击载荷较小时冲击隔离系数随冲击载荷增加而减小，超过一定范围后，冲击隔离系数随着冲击载荷的增加而加大。

Experimental research on metal rubber (mr) shock isolation system

The damping performance of MR unti-shock isolator is dependent on the dry friction and elastic deformation which dissipate vibrating energy. A MR isolator was investigated to satisfy the need of shock isolation system of some aircraft by the shock experiments. The results showed that the maximal accelerator response and the shock isolation coefficient increased with the shock duration, while the shock isolation coefficient was affected by shock load. It is concluded that under smaller shock load, the shock isolation coefficient of MR isolator decreases with the increase of external load; however, when the load exceeds a certain value, the shock isolation coefficient increases with the increase of external load.