轨道车辆吸能装置准静态试验测试技术研究

Quasi-static Test Technique Research on Railway Vehicle Energy-absorbing Device

试验研究方法是轨道车辆吸能装置耐撞性最直接、最具有说服力的研究方法。针对目前国内文献鲜有通过试验对吸能装置耐撞性进行研究的现状,本文设计出一种轨道车辆吸能装置准静态试验测试方法,并对某地铁列车吸能装置进行试验,得到吸能装置压缩力、压缩位移两个关键吸能特性指标;通过准静态试验边界条件,建立等同的仿真分析模型,通过仿真分析方法研究吸能装置的吸能特性并与试验结果进行对比。研究表明:此吸能装置准静态试验测试方法具有可行性,能够满足实际工程需要;分析结果与试验结果一致性较好,验证了分析结果的准确性和试验测试方法的有效性,通过试验与分析结合的方法为吸能装置吸能特性及后续结构优化提供了理论和试验支撑。

The test research method is the most direct and persuasive the crash-worthiness of a for railway vehicle energy absorbing advice (RVEAA).In view of the current situation that few domestic literatures reported the test of energy absorbing device crash-worthiness,a quasi-static test method is designed for RVEAA,and is carried out on some metro train energy absorbing devices.The two key characteristics of compression force and compression stroke for energy absorbing device are obtained.According to the test boundary conditions,the equivalent simulation analysis model is established,the crash-worthiness of the energy absorbing device is studied and simulation results are compared to the test results.The research results show that the designed quasi-static test method is feasible and can meet the needs of practical engineering.The simulation results are in good agreement with the test results,which verifies the accuracy of the analysis results and the validity of the test method,the combination method of test and simulation analysis provides theoretical and experimental support for energy absorption characteristics and subsequent structural optimization of energy absorption device.