|Table of Contents|

Influence of subframe elastic change on vehicle performance(PDF)


Research Field:
Publishing date:


Influence of subframe elastic change on vehicle performance
Gao Jin1Ai Tianfu1Li Zhixin2Nie Zhigen1
1.Faculty of Transportation Engineering,Kunming University of Science and Technology,Kunming 650500,China; 2.Department of Mechanical and Electrical Engineering,Kunming Railway Vocational andTechnical College,Kunming 650208,China
subframe elastic modulus modal analysis rigid-flexible coupling vehicle vehicle ride comfort handling stability
In order to study the influence of the subframe elastic modulus change on vehicle performance,on the premise of ensuring the strength,the subframe modal analysis of a car is carried out and its flexible file is obtained,and the rigid-flexible coupling vehicle model is assembled. Using a patran software to give the several group subframes different elastic modulus,this paper establishes vehicle models in the ADAMS/Car software with different modulus of elasticity of the subframe. The ride comfort and handling stability are comparatively analysed under the same conditions. The results show that over-raising or reducing the elastic modulus of the subframe can increase the value of the total weighted root mean square acceleration on the floor of the driver’s seat,resulting in a decrease of the ride comfort of the vehicle and a certain negative impact on handling stability. The elastic modulus of the subframe should be maintained within a certain range to obtain the best vehicle performance.


[1] 杨荣山,袁仲荣,黄向东,等. 车辆操纵稳定性及平顺性的协同优化研究[J]. 汽车工程,2009,31(11):1053-1055.
Yang Rongshan,Yuan Zhongrong,Huang Xiangdong,et al. A study on cooperative optimization of vehicle controllability/stability and ride comfort[J]. Automo-tive Engineering,2009,31(11):1053-1055.
[2]赵林峰,胡金芳,张荣芸. 重型牵引车驾驶室悬置与悬架参数的集成优化设计[J]. 中国机械工程,2016,27(6):791-795.
Zhao Linfeng,Hu Jinfang,Zhang Rongyun. Integrated optimization design of cab suspension and suspension parameters for heavy tractor[J]. China Mechanical Engineering,2016,27(6):791-795.
[3]陈双,宗长富,刘立国,等. 主动悬架车辆平顺性和操纵稳定性协调控制的联合仿真[J]. 汽车工程,2012,34(9):791-797.
Chen Shuang,Zong Changfu,Liu Liguo,et al. Co-simulation on the coordinated control of ride comfort and handling stability of vehicles with active suspension[J]. Automotive Engineering,2012,34(9):791-797.
[4]刘伟,史文库,桂龙明,等. 基于平顺性与操纵稳定性的悬架系统多目标优化[J]. 吉林大学学报(工),2011,41(5):1199-1204.
Liu Wei,Shi Wenku,Gui Longming,et al. Multi-objective optimization of suspension system based on vehicle ride comfort and handling stability[J]. Journal of Jilin University(Engineering),2011,41(5):1199-1204.
[5]王铁,高昱,申晋宪. 水罐消防车操纵稳定性与平顺性的仿真优化[J]. 汽车工程,2012,34(12):1114-1118.
Wang Tie,Gao Yu,Shen Jinxian. Simulation optimization on the handling stability and ride comfort of fire-extinguishing water tanker[J]. Automotive Engineering,2012,34(12):1114-1118.
[6]Chen W. Coordinated control of vehicle ride comfort and handling stability based on state identification[J]. Journal of Mechanical Engineering,2011,47(6):121.
[7]van Herk S,Terzi A,Ockels W. Analysis of lateral dynamics and ride performance of the superbus[J]. SAE International,2008-01-0586.
[8]Tong Y Yi. Vehicle dynamic simulations based on flexible and rigid multibody models[J]. SAE Technical Paper Series,2000-01-0114.
[9]Maqueda L G,Shabana A A. Multibody system/finite element simulation of belt drives and rubber tracked vehicles[J]. SAE Technical Paper Series,2008-01-2668.
[10]孙亚龙,曾发林. 商用车车架疲劳寿命仿真研究[J]. 重庆理工大学学报(自然科学版),2016,30(2):29-36.
Sun Yalong,Zeng Falin. Study on simulation of commercial vehicle frame fatigue life[J]. Journal of Chongqing University of Technology,2016,30(2):29-36.
[11]李鹏飞,冯国胜,邓晓龙,等. 三维虚拟路面的谐波重构[J]. 汽车工程师,2014(11):24-27.
Li Pengfeng,Feng Guosheng,Deng Xiaolong,et al. Three-dimensional virtual road’s harmonic recons-truction[J]. Automotive Engineer,2014(11):24-27.
[12]卢凡,陈思忠. 汽车路面激励的时域建模与仿真[J]. 汽车工程,2015(5):549-553.
Lu Fang,Chen Sizhong. Modeling and simulation of road surface excitation on vehicle in time domain[J]. Automotive Engineering,2015(5):549-553.
[13]王良模,洪超,陈荣华,等. 某越野车刚柔耦合建模和操纵稳定性仿真[J]. 南京理工大学学报,2013,37(6):941-945.
Wang Liangmo,Hong Chao,Chen Ronghua,et al. Rigid-flexible coupling modeling and handling stability simulation for a certain off-road vehicle[J]. Journal of Nanjing University of Science and Technology,2013,37(6):941-945.


Last Update: 2018-08-30