减振器阀片尺寸对阻尼力影响仿真及试验研究  

Experimental study and simulation study on the impact of absorber valve sizes on damping forces

作　　者：周安江 杨礼康 杜嘉鑫 徐云奎 ZHOU Anjiang;YANG Likang;DU Jiaxin;XU Yunkui(School of Mechanical and Energy Engineering,Zhejiang University of Science and Technology Hangzhou 310023,Zhejiang,China;Zhejiang Huachang Hydraulic Machinery Co.,Ltd.,Hangzhou 310021,Zhejiang,China)

机构地区：[1]浙江科技学院机械与能源工程学院,杭州310023 [2]浙江华昌液压机械有限公司,杭州310021

出　　处：《浙江科技学院学报》2018年第5期421-428,共8页Journal of Zhejiang University of Science and Technology

基　　金：国家自然科学基金项目(51175474)

摘　　要：在轨道车辆液压减振器的开发过程中,存在难以精确计算阀片节流孔对阻尼力的影响,以及不合理的节流阀片配置会对行程阻尼特性造成不确定性影响等问题。对减振器复原及压缩行程不同阻尼情况进行建模仿真,并分析不同直径节流阀片对减振器阻尼特性的影响;再对其内部复原、压缩阀片采用不同直径的阀片组进行对比试验,从而验证了模型的正确性。该模型及试验结果对轨道车辆减振器研发设计及性能评估试验具有直接参考价值。In the development process of the hydraulic shock absorber in rail vehicles, it is difficult to accurately calculate the influence of disc throttle orifices on the damping force and the uncertain influence of unreasonable throttle disc configuration on stroke damping properties. The paper carries out simulation of both compression and rebound strokes of the shock absorber under various damping conditions, exploring the influence of valve disc diameters on the damping properties. In addition, contrast tests on a set of valve discs at different diameters are conducted to study the actual effects of changing the valve disc diameters on the damping properties of the shock absorb comparing the results of the simulation and the er, and the accuracy of the model is verified by physical experiment. This simulation model and the conclusion provide a direct reference for the development and the performance evaluation of the shock absorber in rail vehicles.

关 键 词：轨道车辆减振器 阀片 阻尼特性 

分 类 号：U260.331.5[机械工程—车辆工程]