农业工程学报2012，Vol.28Issue(5)：60-65,6.DOI:10.3969/j.issn.1002-6819.2012.05.011
连通式油气悬架数学模型及特性分析
Mathematical model and characteristics analysis of interconnected hydro-pneumatic suspension
摘要
Abstract
In order to study the effect of parameter variation on the stiffness and damping characteristics of interconnected hydro-penumatic suspension, a non-linear mathematical model of interconnected hydro-penumatic suspension was formulated considering the compressibility of fluid and the motion friction. A test bed was constructed and a simulation model of interconnected hydro-penumatic suspension was established. The simulation results were compared with experiment results and theory results. The error was within 10%. Besides, the effects of initial inflation pressure, excitation frequency, and phase difference between the right and left hydraulic cylinders on interconnected hydro-penumatic suspension were also investigated based on the mathematical model. The results indicated that the bigger the initial inflation volume was, the smaller the stiffness became. The bigger the excitation frequency and phase difference were, the bigger the stiffness and damping characteristics became. The initial inflation pressure can hardly affect the characteristics.关键词
悬架/特性描述/数学模型/刚度阻尼Key words
suspension/ characterization/ mathematical models/ stiffness and damping characteristics分类
交通工程引用本文复制引用
王增全,申焱华,杨珏..连通式油气悬架数学模型及特性分析[J].农业工程学报,2012,28(5):60-65,6.基金项目
国家“十一五”科技支撑项目“60吨级双动力交流驱动铰接式自卸汽车研制”(NO.2008BAB32B03) （NO.2008BAB32B03）
