汽车横向稳定杆的参数化分析及优化
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摘要
对汽车横向稳定杆的几何尺寸进行参数化处理,采用莫尔积分法推导横向稳定杆的侧倾角刚度计算公式并初步校核强度,通过有限元仿真分析验证该方法的可行性;针对某SUV,以侧倾角刚度为优化目标,采用比例系数优化法对该车的横向稳定杆进行优化设计;然后在ADAMS/Car中建立整车动力学仿真模型,以转向盘角阶跃实验验证优化的效果,最后进行整车实验验证.仿真和实验结果表明,侧倾角刚度较大的横向稳定杆更有助于提高汽车的侧倾稳定性,这进一步验证了文中优化设计的可行性.
In this paper,first,a geometry parameterization of the anti-roll bar is performed. Next,the formulas of the rolling angle stiffness are deduced by means of the Moore integral method,followed by a preliminary strength verification. Then,a finite element simulation is carried out to verify the feasibility of the proposed method. Moreover,an optimization design of the anti-roll bar of a SUV is conducted via the proportionality coefficient method,with the rolling angle stiffness as the optimization objective. Finally,a simulation model is established in ADAMS /Car to verify the effectiveness of the optimization through a steering wheel step input test,followed by a real car experiment. The results of both the simulation and the real car experiment show that good roll stability can be obtained at a high rolling angle stiffness of the anti-roll bar. It is thus concluded that the proposed optimization method is feasible.
In this paper,first,a geometry parameterization of the anti-roll bar is performed. Next,the formulas of the rolling angle stiffness are deduced by means of the Moore integral method,followed by a preliminary strength verification. Then,a finite element simulation is carried out to verify the feasibility of the proposed method. Moreover,an optimization design of the anti-roll bar of a SUV is conducted via the proportionality coefficient method,with the rolling angle stiffness as the optimization objective. Finally,a simulation model is established in ADAMS /Car to verify the effectiveness of the optimization through a steering wheel step input test,followed by a real car experiment. The results of both the simulation and the real car experiment show that good roll stability can be obtained at a high rolling angle stiffness of the anti-roll bar. It is thus concluded that the proposed optimization method is feasible.
引文
[1]王靖岳,欧阳纯,梁洪明.汽车悬架横向稳定杆的参数化设计[J].汽车工程师,2014(9):39-41.WANG Jing-yue,OUYANG Chun,LIANG Hong-ming.The parameterized design of suspension anti-roll bar of the vehicle[J].Auto Engineer,2014(9):39-41.
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[10]郑严.基于智能算法的结构可靠性分析及优化设计研究[D].成都:西南交通大学机械工程学院,2012.
[11]YANG Zhou,ZHANG Yi-min,HUANG Xian-zhen,et al.Reliability-based robust optimization design of automobile components with non-normal distribution parameters[J].Chinese Journal of Mechanical Engineering,2013,26(4):823-829.
[12]孙维汉,顾宏斌.基于ADAMS/Car汽车动力学仿真[J].计算机应用,2004(6):19-21.SUN Wei-han,GU Hong-bin.The simulation of vehicle dynamic based on ADAMS/Car[J].Computer Application,2004(6):19-21.
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[14]GB/T 6323.3—94,汽车操纵稳定性实验方法,转向瞬态响应试验(转向盘角阶跃输入)[S].
[15]GIM G,NIKRAVESH P.An analytical model of pneumatic tyres for vehicle dynamic simulations(Part 1):pure slips[J].International Journal of Vehicle Design,1990,1(6):201-205.
[16]孟武胜,朱剑波,黄鸿,等.基于Lab VIEW数据采集系统的设计[J].电子测量技术,2008,31(11):63-65.MENG Wu-sheng,ZHU Jian-bo,HUANG Hong,et al.Data acquisition system based on Lab VIEW[J].Electronic Measurement Technology,2008,31(11):63-65.
[17]ZHOU Kai,WANG Xu-dong,LIU Jian.Real-time data acquisition system for vehicle ABS test stand[J].International Journal of Vehicle Safety,2011,5(3):101-107.
[2]CRONJE P H,ELS P S.Improving off-road vehicle handling using an active anti-roll bar[J].Journal of Terramechanics,2010(47):179-189.
[3]李群,何耀华.基于CATIA的汽车横向稳定杆的参数化设计[J].汽车工程师,2011(6):24-26.LI Qun,HE Yao-hua.The parameterized design of automotive anti-roll bar based on CATIA[J].Auto Engineer,2011(6):24-26.
[4]曾迥立.悬架稳定杆刚度的计算与分析[J].汽车科技,2004,9(5):14-16.ZENG Jiong-li.Calculation and analysis of suspension stabilizer rigidity[J].Automotive Technology,2004,9(5):14-16.
[5]黄小清,陆丽芳,何庭蕙.材料力学[M].广州:华南理工大学出版社,2006.
[6]XING Y M,KISHIMOTO S,ZHAO Y R.An electron moire method for a common SEM[J].Acta Mechanica Sinica,2006(22):595-602.
[7]王谊,张晓蓉,蒋西明.汽车侧向稳定性校核及稳定杆强度校核[J].重庆工学院学报,2000,14(5):30-32.WANG Yi,ZHANG Xiao-rong,JIANG Xi-ming.The calibration of lateral stability and stabilizer bar strength of automobiles[J].Journal of Chongqing Institute of Technology,2000,14(5):30-32.
[8]张瑞发,郑核桩,宋玮,等.汽车稳定杆的三维有限元分析[C]∥崔京浩.第十二届全国结构工程学术会议论文集第Ⅰ册.重庆:清华大学出版社,2003:412-415.
[9]宋健,邢如飞.带橡胶套的稳定杆有限元分析[J].汽车工程,2005,27(5):592-594.SONG Jian,XING Ru-fei.Finite element analysis on stabilizer-bar with rubber bush[J].Automotive Engineering,2005,27(5):592-594.
[10]郑严.基于智能算法的结构可靠性分析及优化设计研究[D].成都:西南交通大学机械工程学院,2012.
[11]YANG Zhou,ZHANG Yi-min,HUANG Xian-zhen,et al.Reliability-based robust optimization design of automobile components with non-normal distribution parameters[J].Chinese Journal of Mechanical Engineering,2013,26(4):823-829.
[12]孙维汉,顾宏斌.基于ADAMS/Car汽车动力学仿真[J].计算机应用,2004(6):19-21.SUN Wei-han,GU Hong-bin.The simulation of vehicle dynamic based on ADAMS/Car[J].Computer Application,2004(6):19-21.
[13]饶剑.基于ADAMS的悬架系统动力学仿真分析与优化设计[D].武汉:武汉理工大学汽车工程学院,2005.
[14]GB/T 6323.3—94,汽车操纵稳定性实验方法,转向瞬态响应试验(转向盘角阶跃输入)[S].
[15]GIM G,NIKRAVESH P.An analytical model of pneumatic tyres for vehicle dynamic simulations(Part 1):pure slips[J].International Journal of Vehicle Design,1990,1(6):201-205.
[16]孟武胜,朱剑波,黄鸿,等.基于Lab VIEW数据采集系统的设计[J].电子测量技术,2008,31(11):63-65.MENG Wu-sheng,ZHU Jian-bo,HUANG Hong,et al.Data acquisition system based on Lab VIEW[J].Electronic Measurement Technology,2008,31(11):63-65.
[17]ZHOU Kai,WANG Xu-dong,LIU Jian.Real-time data acquisition system for vehicle ABS test stand[J].International Journal of Vehicle Safety,2011,5(3):101-107.