工程设计学报2017，Vol.24Issue(2)：149-155,7.DOI:10.3785/j.issn.1006-754X.2017.02.004
双筒式液压减振器阻尼力建模与灵敏度分析
Damping force modeling and sensitivity analysis of double-tube hydraulic damper
摘要
Abstract
In order to improve the accuracy of the damping force`s output and performance reliability of the damper, the influence of size and tolerance of the double-tube hydraulic damper and the viscosity of the oil on the damping force is quantitatively analyzed.According to the generation mechanism of the damping force, the damping force model before and after the recovery valve opened in the recovery stroke and the damping force model before and after the compression valve opened in the compression stroke were established.By using the MATLAB simulation, the indicator diagram and speed characteristics diagram were obtained, and the performances were verified by bench test.The sensitivity analysis of the different parameters was done by using the Design Exploration module of ANSYS considering the complexity of model.Based on the randomness of the oil viscosity, the opening degree of the recovery (compression) valve which has more influence on the damping force, the prior distribution of the damping force was calculated by using Monte Carlo method.The results show that the damping force is distributed normally, and the method provides a basis for the design of double-tube hydraulic damper.关键词
液压减振器/阻尼力模型/灵敏度/蒙特卡洛Key words
hydraulic damper/damping force model/sensitivity/Monte Carlo分类
交通工程引用本文复制引用
段福斌,潘骏,陈文华,徐瀚辉,杨礼康..双筒式液压减振器阻尼力建模与灵敏度分析[J].工程设计学报,2017,24(2):149-155,7.基金项目
国家自然科学基金面上项目(51175474) （51175474）
浙江省重中之重学科开放基金资助项目(ZSTUMD2012A008) （ZSTUMD2012A008）
