高速列车减振器新型活塞结构研发及仿真试验

Research and Simulation Experiment of New Type Piston Structure for High-speed Train Damper

为实现高速列车关键零部件国产化,结合高速列车对减振器的性能要求及运行环境,对高速列车CRH380BL二系横向减振器的活塞结构进行了创新设计。应用三维设计软件Solid Works完成减振器新型活塞结构设计,新型活塞结构具有更优秀的工作特性和工艺可控性。在MSC.Easy5环境下建立减振器的液压控制模型,通过减振器性能的仿真测试,完成新型活塞结构参数优选。将减振器试验台的测试结果与仿真数据进行对比分析,减振器仿真性能测试与试验结果基本吻合。结果表明:采用新型活塞结构减振器的压缩力值、复原力值以及不对称率等基本参数满足动车组油压减振器技术条件;减振器液压模型具有良好的仿真精确度;创新设计的液压减振器活塞满足设计需要和工作要求。

In order to realize the localization of high speed train key components,combined with the performance requirements that high-speed train on the shock absorber and operating environment, an innovative design is developed for the piston structure of the CRH380 BL secondary lateral damper. Three-dimensional design software Solid Works is used to complete the new piston structure design of damper. The new type piston structure has better working characteristics and process controllability. In the MSC. Easy5 environment, hydraulic control model of shock absorber is established. Through the simulation test of shock absorber performance, the structural parameters preferred of new type piston are completed. The test results and simulation data are compared and analyzed, and the simulation results are consistent with the test results. The results show that using the basic parameters such as the compression force, the restoring force and the asymmetric rate of shock absorber of new type piston structure can satisfy the technical requirements for hydraulic damper of EMU. Hydraulic model of shock absorber has good simulation accuracy. The innovative design of hydraulic shock absorber piston meets design and work requirements.