基于试验模态分析的某导弹振动夹具动态性能分析

Research on Dynamic Characteristics of Vibration Fixture for a Missile Based on Experimental Modal Analysis

在对模态试验原理进行分析的基础上,给出了针对某导弹振动夹具的试验模态测试方法。采用力锤冲击的激励方法,获取了夹具的模态参数,并开展了夹具的动态性能分析。同时,将试验模态测试结果与有限元计算结果进行对比分析,验证了测试结果的正确性。本研究结果可为未来同系列产品的夹具设计及制造提供参考。

On the basic principle of modal test,the experimental modal test method is given for the vibration test fixture of a missile.The excitation by force hammer is adopted,and the modal parameters of fixture are obtained,then the dynamic characteristics of the fixture is analysed.The result between the modal test and finite element calculation is contrasted,which verifies the correctness of the modal test result.The reference for the fixture design and manufacture can be provided by the research results.