车下设备作为轨道车辆的重要部件,在车辆运行过程中需要具有良好的抗冲击和振动疲劳性能,以线槽为例进行车下设备冲击与振动疲劳分析,冲击分析根据第四强度理论进行评定,振动分析根据Miner疲劳损伤累计法则评定.通过分析验证产品结构合理性,缩短产品开发周期,降低设计成本。 Under-vehicle equipment, as an important part of rail vehicle, needs good impact and vibration fatigue performance during vehicle operation. Taking the trough as an example, it analyzes the under-vehicle impact and vibration fatigue, and the impact analysis is evaluated according to the fourth strength theory The vibration analysis is based on Miner fatigue damage cumulative rule, which is validated by analyzing the product structure rationality, shortening the product development cycle and reducing the design cost.