摘要
为有效提高车辆主动悬架的减振效果及降低控制能耗,提出了一种基于滚珠丝杠作动器和磁流变减振器的车辆阻尼可调式混合主动悬架结构。建立了二自由度混合悬架动力学模型及磁流变减振器、滚珠丝杠作动器数学模型;分析并设计了混合悬架在不同车速下的最优可调阻尼值,设计了混合悬架的可调阻尼切换控制器,并利用MATLAB/Simulink软件仿真分析了混合悬架在循环工况下的减振性能及能耗特性,开展了混合悬架台架试验研究。仿真和试验结果表明,与主动悬架相比,随机路面谱输入条件下混合悬架的簧载质量加速度均方根降低了16%以上,混合悬架减振效果显著。
To effectively improve the damping performances of the vehicle active suspension and reduce the energy consumption of the control system, an adjustable damping hybrid active suspension structure was put forward based on the ball screw actuator and magnetorheological damper. The 2-DOF dynamic model of the hybrid active suspension and the magnetorheological damper/ball screw actuator mathematical models were established. The optimal shock absorber damping value of the hybrid active suspension was analyzed, and corresponding adjustable damping switching controller under different speeds was designed. The damping performances and energy consumption characteristics of the hybrid suspension under driving cycles were simulated by MATLAB/Simulink software, and the bench tests of the hybrid suspension system were conducted. Numerical and experimental results show that compared with the active suspension, the root mean square of the body acceleration of the hybrid suspension decreases by more than 16% for random road. The damping effect of the hybrid suspension system is obvious.
作者
寇发荣
魏冬冬
梁津
何凌兰
孙凯
KOU Farong;WEI Dongdong;LIANG Jin;HE Linglan;SUN Kai(School of Mechanical Engineering,Xi＇an University of Science and Technology,Xi＇an 710054,China)
出处
《中国科技论文》
CAS
北大核心
2018年第16期1902-1908,共7页
China Sciencepaper
基金
国家自然科学基金资助项目(51775426)
陕西省教育厅科学研究计划项目(17JF017)
西安市科技计划资助项目(2017079CG/RC042-XAKD00)
关键词
车辆工程
混合主动悬架
最优阻尼
切换控制
台架试验
automotive engineering
hybrid active suspension
optimal damping
switching control
bench test
作者简介
寇发荣（1973-），男，教授，主要研究方向为车辆动力学与控制，koufarong@xust.edu.cn
