西南交通大学学报Issue(2)：291-296,6.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
Influence of Valves Parameters on Damping Characteristics of Hydraulic Shock Absorber for High-Speed Trains
摘要
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.关键词
高速列车/液压减振器/阀系参数/阻尼特性/流体动力学Key words
high-speed train/hydraulic shock absorber/valves parameters/damping characteristics/hydrodynamics分类
交通工程引用本文复制引用
杨明亮,李人宪,丁渭平,张松,丁伟..阀系参数对高速列车液压减振器阻尼特性的影响[J].西南交通大学学报,2014,(2):291-296,6.基金项目
高等学校博士学科点专项科研基金资助项目 （）
