传递路径分析法在机车振动测试分析中的应用  

Application of transfer path analysis method in vibration test and analysis of locomotive

作　　者：陈晓 程雄 

机构地区：[1]大功率交流传动电力机车系统集成国家重点实验室 [2]中车株洲电力机车有限公司,湖南株洲412001

出　　处：《电力机车与城轨车辆》2018年第1期81-84,92,共5页Electric Locomotives & Mass Transit Vehicles

摘　　要：传递路径分析(TPA)是一种研究系统(或结构)振动传递特性的一种有效的方法,通过试验和计算,能够有效地识别不同的传递路径对目标点振动的贡献量的大小,从而给设计人员提供准确的振动传递路径,进而优化系统参数,降低目标点振动值。文章结合某型电力机车振动试验,利用LMS的TPA分析模块分析几条传递路径的传递函数,给出可供参考的优化路径。Transfer path analysis（TPA） is an effective method for studying system or structure vibration transmission characteristics. Through the experiment and calculation, the different paths to the size of vibration contribution to the target point can effectively identified, which can provide the designer with accurate vibration transmission path. So that the optimal system or structure parameters are optimized, and the vibration value of the target is reduced. Combining with some electric locomotive vibration test, this paper analyses several paths of transfer function by using the LMS TPA software, and gives optimal paths as a reference for the designer.

关 键 词：传递路径分析 机车 振动 传递函数 测试 

分 类 号：U270.7[机械工程—车辆工程]