应用惯容器提升车辆侧向稳定性的研究
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摘要
为探索应用惯容器的车辆悬架对汽车侧向稳定性的提升,对两种ISD悬架结构进行了研究。构建了整车动力学模型,在分析车辆侧向稳定性的基础上,以典型的鱼钩转向输入作为测试工况,以车身侧倾角时域响应的峰值作为优化指标,利用多种群遗传优化算法对ISD悬架的元件参数进行优化,并对优化结果进行仿真。结果表明:与传统被动悬架相比,应用惯容器的S1和S2型车辆ISD悬架的车身侧倾角峰值得到了显著的抑制,在不同车速下的测试结果最高可分别改善38.6%和48.6%。而与S1型悬架相比,S2型悬架对车辆的侧向稳定性提升更为显著,更适合车辆的实际运用。
In order to explore the possibility of enhancing the lateral stability of vehicle by applying inerter to suspension,two different inerter-spring-damper( ISD) suspension structures are studied. A seven DOF dynamics model for a car is built,and on the basis of an analysis on the lateral stability of vehicle and taking the typical fishhook steering input as test condition,an optimization on the element parameters of ISD suspension is conducted by using multiple population genetic algorithm with the peak value of time domain response of car body roll angle as optimization indicator,and the results of optimization are simulated. The results show that the peak values of car body roll angle of the vehicle with S1 and S2 ISD suspensions are significantly suppressed,improving by 38. 6% and48. 6% respectively at different vehicle speeds compared with conventional passive suspension. And comparatively S2 suspension has more significant enhancement in vehicle lateral stability than S1 one so is more suitable for use in vehicle.
In order to explore the possibility of enhancing the lateral stability of vehicle by applying inerter to suspension,two different inerter-spring-damper( ISD) suspension structures are studied. A seven DOF dynamics model for a car is built,and on the basis of an analysis on the lateral stability of vehicle and taking the typical fishhook steering input as test condition,an optimization on the element parameters of ISD suspension is conducted by using multiple population genetic algorithm with the peak value of time domain response of car body roll angle as optimization indicator,and the results of optimization are simulated. The results show that the peak values of car body roll angle of the vehicle with S1 and S2 ISD suspensions are significantly suppressed,improving by 38. 6% and48. 6% respectively at different vehicle speeds compared with conventional passive suspension. And comparatively S2 suspension has more significant enhancement in vehicle lateral stability than S1 one so is more suitable for use in vehicle.
引文
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[14]张孝良,陈龙,聂佳梅,等.2级串联型ISD悬架频响特性分析与试验[J].江苏大学学报,2012,33(3):255-258.
[15]SEIFI A,HASSANNEJAD R,HAMED M A.Optimum design for passive suspension system of a vehicle to prevent rollover and improve ride comfort under random road excitations[J].Proceedings of the Institution of Mechanical Engineers,Part K:Journal of Multi-body Dynamics,2016,230(4):426-441.
[2]赵健,郭俐彤,朱冰,等.基于神经网络和侧翻时间算法的轻型汽车侧翻预警[J].吉林大学学报(工学版),2012,42(5):1083-1088.
[3]金智林,张甲乐,马翠贞.基于动态预警的汽车防侧翻鲁棒控制[J].南京航空航天大学学报,2013,45(6):875-880.
[4]朱天军,宗长富.基于改进TTR算法的重型车辆侧翻预警系统[J].机械工程学报,2011,47(10):89-94.
[5]BRAGHIN F,CHELI F,CORRADI R,et al.Active anti-rollover system for heavy-duty road vehicle[J].Vehicle System Dynamics,2008,46(S1):653-668.
[6]麦莉,曲伟,朱天军,等.基于模型预测的重型商用车侧翻预警算法[J].吉林大学学报(工学版),2010,40(4):906-910.
[7]WIELENGA J,CHACE M A.A Study in rollover prevention using anti-rollover braking[C].SAE Paper 2000-01-1642.
[8]陈建国,程军圣,聂永红.转向工况下车辆主动悬架的侧倾控制[J].汽车工程,2014,36(5):616-620.
[9]卢少波,李以农,郑玲.基于制动与悬架系统的车辆主动侧翻控制的研究[J].汽车工程,2011,33(8):670-675.
[10]SMITH M C.Synthesis of mechanical networks:the inerter[J].IEEE Transactions on Automatic Control,2002,47(10):1648-1662.
[11]杨晓峰,沈钰杰,陈龙等.基于动力吸振理论的车辆ISD悬架设计与性能分析[J].汽车工程,2014,36(10):1311-1315.
[12]SMITH M C,WANG Fucheng.Performance benefits in passive vehicle suspensions employing inerters[J].Vehicle System Dynamics,2004,42(4):235-257.
[13]ZHANG Xinjie,AHMADIAN Mehdi,GUO Konghui.On the benefits of semi-active suspensions with inerters[J].Shock and Vibration,2012,19(3):257-272.
[14]张孝良,陈龙,聂佳梅,等.2级串联型ISD悬架频响特性分析与试验[J].江苏大学学报,2012,33(3):255-258.
[15]SEIFI A,HASSANNEJAD R,HAMED M A.Optimum design for passive suspension system of a vehicle to prevent rollover and improve ride comfort under random road excitations[J].Proceedings of the Institution of Mechanical Engineers,Part K:Journal of Multi-body Dynamics,2016,230(4):426-441.