刚度和阻尼均可调的油气悬架设计与试验  

Design and Test of a Hydro-Pneumatic Suspension with Adjustable Stiffness and Damping

作　　者：张军伟[1] 陈思忠[1] 吴志成[1] 杨林[1] 

机构地区：[1]北京理工大学汽车实验室,北京100081

出　　处：《汽车工程学报》2013年第2期106-112,共7页Chinese Journal of Automotive Engineering

基　　金：总装备部"十一五"基金项目(40407030104)

摘　　要：针对一种高机动性越野车,设计了一种刚度阻尼可调的油气悬架,介绍了该悬架的结构及工作原理,建立了刚度和阻尼的非线性数学模型,并对其阻尼阀进行了详细介绍及建模。介绍了此油气悬架的刚度与阻尼调节机理,在油液工作压力达到一定值时,实现两级刚度之间的转换;通过控制电磁阀的通断电可以实现阻尼的三级可调,并通过台架试验验证了刚度和阻尼调节的可行性。将阻尼力仿真结果与台架试验进行对比,验证了所建立的阻尼阀数学模型的正确性。A hydro-pneumatic suspension with adjustable stiffness and damping was designed for a high mobility off-road vehicle. The structure and working principles were introduced. The complex nonlinear mathematical models of stiffness and damping were built up, and the model of damping valve was developed mainly. The adjustment principles of stiffness and damping were described. The conversion between two stiffness step was achieved when the oil pressure reached a certain value. Three-step damping was available to be adjusted by controlling the on/off solenoid valve. The characteristics of adjustable stiffness and damping were verified by the bench test. The simulation results of damping force agree with the bench test data, which shows the correctness of the mathematical model of damping valve.

关 键 词：油气悬架 刚度可调 阻尼可调 阻尼阀 台架试验 

分 类 号：TH12[机械工程—机械设计及理论] U463.33[机械工程—车辆工程]