磁流变液在工程车辆气液弹簧悬架系统减振中的应用  

Application of magneto-rheologic liquid to buffering of off-highway vehicles with pneumohydraulic suspension system

作　　者：郜立焕[1] 祁玉宁[1] 温超[1] 褚金利[1] 

机构地区：[1]兰州理工大学流体动力与控制学院,甘肃兰州730050

出　　处：《兰州理工大学学报》2005年第5期54-56,共3页Journal of Lanzhou University of Technology

基　　金：甘肃省自然科学基金(ZS022-A25-022)

摘　　要：针对传统的工程车辆被动悬架系统无法自适应环境变化的弱点,对改进后的气液弹簧悬架系统进行了分析,分析结果表明这种改进的悬架系统虽具有变刚度的特点,但阻尼仍不可调.根据新型智能材料磁流变液所表现出的粘度随磁场变化的特性,提出并论证运用这种材料来改进气液弹簧悬架系统,能够实现对工程车辆振动的半主动、实时控制,最终达到改善工程车辆的行驶平顺性.Aimed at the difficulty that the passive suspension system of conventional off-highway vehicles cannot adapt to the changing ambient of the road, a suspension system improved by using pneumohydraulic buffering is analyzed, and it is found that, although there has been variable-rigidity with this improved system,its damping action could not be controlled. According to such a special property of a new intelligent material-magneto-rheologic liquid that its viscosity varies with the changing magnetic field, a pneumohydraulic suspension system with such material is proposed and justified, with which a sort of half-active and real-time control of the buffering of off-highway vehicles can be realized,making their travel smooth.

关 键 词：工程车辆振动 气液弹簧悬架系统 磁流变液 

分 类 号：TH137.9[机械工程—机械制造及自动化]