阀系参数对高速列车液压减振器阻尼特性的影响

杨明亮; 李人宪; 丁渭平; 张松; 丁伟

doi:10.3969/j.issn.0258-2724.2014.02.016

阀系参数对高速列车液压减振器阻尼特性的影响

doi: 10.3969/j.issn.0258-2724.2014.02.016

基金项目:

高等学校博士学科点专项科研基金资助项目（20100184110002）

详细信息

作者简介:
杨明亮（1982-），男，工程师，博士研究生，研究方向为车辆系统动力学、车辆声振舒适性，E-mail：yml@swjtu.edu.cn

通讯作者:
丁渭平（1968-），男，教授，研究方向为车辆振动、噪声及其声振舒适性、车辆系统动力学，Email：dwp@swjtu.edu.cn

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出版历程
- 收稿日期: 2013-07-08
- 刊出日期: 2014-03-25

Influence of Valves Parameters on Damping Characteristics of Hydraulic Shock Absorber for High-Speed Trains

摘要

摘要: 为研究高速列车液压减振器阻尼特性与阀系参数之间的定量关系，以高速列车广泛采用的一种液压减振器结构形式为研究对象，结合流体动力学原理与液压传动技术分析了其阻尼力产生机理，构建并验证了复原行程阻尼力计算模型，讨论了阀系参数对高速列车液压减振器阻尼特性的影响规律.研究结果表明：常通孔直径是影响开阀前减振器阻尼特性的主要因素，阻尼力变化高达52.4%；复原孔直径是影响开阀后减振器阻尼特性的主要因素，阻尼力变化高达80.1%.根据所得结论提出了高速列车液压减振器性能设计和调校的指导原则.
- 高速列车 /
- 液压减振器 /
- 阀系参数 /
- 阻尼特性 /
- 流体动力学
Abstract: A form of hydraulic shock absorber structure widely used for high-speed trains was studied to reveal the quantitative relationship between the damping characteristics of hydraulic shock absorber and valves parameters. The damping force generating mechanism was analyzed using fluid dynamics principle and hydraulic transmission technology. Then, a damping force calculation model was constructed and verified for the recovery stroke, and the influences of valves parameters on damping characteristics of the hydraulic shock absorber for high-speed trains were discussed. The results show that the diameter of the throttle holes was the major factor to impact the shock absorber's damping characteristics before the valves opened, and the damping force changed up to 52.4%. In contrast, the diameter of the recovery hole was the major factor to impact the shock absorber's damping characteristics after the valves opened, and the damping force changed up to 80.1%. According to the conclusion, the performance design and tuning guidelines for high-speed train shock absorbers are proposed.
- high-speed train /
- hydraulic shock absorber /
- valves parameters /
- damping characteristics /
- hydrodynamics

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参考文献(17)

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