新型主减隔振装置隔振性能测试试验研究

为解决新研全尺寸主减隔振装置地面性能试验中由于试验件尺寸大、重量重和试验状态多等难点,同时缩短试验周期并降低试验成本,提出了一种通过实测动载荷传递率评估主减隔振装置隔振性能的地面性能试验方法,给出了试验方案、试验夹具安装、试验内容以及过程。通过理论分析和试验结果,验证了实测动载荷传递率试验方案的可行性,测试结果真实可靠,为后续类似的系统级全尺寸隔振性能试验提供了一种新的试验方法。试验结果表明:新型主减隔振装置对垂向、航向和侧向三向激励的隔振效率均超过了80%,达到了预期的减振效果。

Vibration Isolation Performance of A New Type of Gearbox Vibration Isolation Device

In order to solve the difficulties in ground performance test of new full-scale gearbox vibration isolation device, such as large size, heavy weight and many test states, and to shorten test period and reduce test cost, a test method for evaluating the vibration isolation performance of the gearbox vibration isolation device by measuring the transfer rate of dynamic load was presented. Details about the scheme, test fixture installation, test content and process of the ground performance test were brought forward. The theoretical analysis and the comparison test results of traditional vibration level verified the feasibility of the measured load transfer rate test scheme and the reliability of the test results, which provided a new test method for the following similar system level full-scale vibration isolation performance test. The experimental results showed that the vibration isolation efficiency of the new type of gearbox vibration isolation device for X,Y,Z three directions achieved over 80%, and achieved the expected vibration reduction effect.