学术论文

      金属橡胶冲击隔振系统试验

      Experimental research on metal rubber shock isolation system

      摘要:
      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.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.
      Abstract:
      The damping performance of metal rubber (MR) anti-shock isolator depends on the dry friction and elastic deformation that dissipates vibrating energy. An MR isolator was investigated to satisfy the need of shock isolation system of some aircrafts by the shock experiments. The results show that the maximal accelerator response and the shock isolation coefficient increase with the shock duration, while the shock isolation coefficient is 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 external load.
      作者: 闫辉 [1] 姜洪源 [1] 刘文剑 [1] 郝德刚 [2]
      Author: YAN Hui [1] JIANG Hong-yuan [1] LIU Wen-jian [1] HAO De-gang [2]
      作者单位: 哈尔滨工业大学机电学院,哈尔滨,150001 哈尔滨工业大学航天学院,哈尔滨,150001
      刊 名: 航空动力学报 ISTICEIPKU
      年,卷(期): 2009, 24(7)
      分类号: TH113.1
      机标分类号: O32 TP2
      在线出版日期: 2010年1月11日
      基金项目: 国家自然科学基金,国家博士后科学基金,中国博士后科学基金