铰接转向非公路车辆侧倾失稳控制研究
首发时间:2014-08-18
摘要:铰接转向车辆由于其自身结构可变和工作环境恶劣等因素,翻车频率较高。为了提高铰接转向车辆的侧倾稳定性,本文对现有的被动摆动桥结构进行了改进,在现有结构的基础上增加了电液比例控制系统。为了验证所设计控制系统的防倾翻性能,基于多体动力学软件RecurDyn和控制软件Matlab/Simulink,建立了包括主动摆动桥模块的某型号装载机虚拟样机联合仿真模型。分析结果表明,主动摆动桥在保证其基本功能的基础上能够实现铰接转向车辆的主动防倾翻控制。
关键词: 铰接转向车辆 侧倾稳定性 主动防倾翻控制 摆动桥改进
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Study on rollover instability control of articulated steering off-highway vehicles
Abstract:Articulated steering vehicles (ASVs) is more likely to lose stability because of their own structural changes and poor working conditions. In order to improve the roll stability of ASVs, the existing passive swing bridge had been improved by adding an electro-hydraulic proportional control system. Based on multi-body dynamics software RecurDyn and control software Matlab/Simulink, a virtual prototype model of one wheel loader which contains the improved swing bridge was built to verify the anti-rollover performanceof the control system. The results showed that the improved swing bridge could achieve active anti-rollover control of ASV as well as guarantee its basic function.
Keywords: Articulated steer vehicles Rollover instability Active anti-rollover control Improved swing bridge
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