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Chinese Journal of Mechanical Engineering  2019, Vol. 32 Issue (4): 64-64    DOI: 10.1186/s10033-019-0376-0
  Advanced Transportation Equipment 本期目录 | 过刊浏览 | 高级检索 |
Study on Rollover Index and Stability for a Triaxle Bus
Zhilin Jin1, Jingxuan Li1, Yanjun Huang2, Amir Khajepour2
1. Department of Vehicle Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing, Jiangsu Province 210016, China;
2. Department of Mechanical & Mechatronics Engineering, University of Waterloo, Waterloo, ON N2L 3G1, Canada
Study on Rollover Index and Stability for a Triaxle Bus
Zhilin Jin1, Jingxuan Li1, Yanjun Huang2, Amir Khajepour2
1. Department of Vehicle Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing, Jiangsu Province 210016, China;
2. Department of Mechanical & Mechatronics Engineering, University of Waterloo, Waterloo, ON N2L 3G1, Canada
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摘要 Vehicle rollover, and its resulting fatalities, is an actively researched topic especially for multi-axle vehicles in the field of vehicle dynamics and control. This paper first presents a new rollover index for a triaxle bus to accurately evaluate its rollover possibility and then discusses the influence laws of the vehicle rollover dynamics to explore the mechanism of its stability. First, a six degree of freedom rollover model of the triaxle bus is developed, including lateral, yaw, roll motion of the sprung mass of the front/rear axle, and roll motion of the unsprung mass of the front/rear axle. Next, some key parameters of the vehicle rollover model are identified. A new rollover index is deduced according to the basics of vehicle dynamics, to predict vehicle rollover risk for the triaxle bus, which is verified by TruckSim. Furthermore, the influence laws of vehicle rollover dynamics by vehicle parameters and road parameters are discussed based on the simulation results. More importantly, the results show that the new method of modeling can precisely describe the rollover dynamics of the studied bus, and the proposed new index can effectively evaluate the rollover possibility. Therefore, this study provides a theoretical basis to improve anti-rollover ability for triaxle buses.
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Zhilin Jin
Jingxuan Li
Yanjun Huang
Amir Khajepour
关键词 Rollover stabilityDynamic modelTriaxle busRollover indexVehicle active safety    
Abstract:Vehicle rollover, and its resulting fatalities, is an actively researched topic especially for multi-axle vehicles in the field of vehicle dynamics and control. This paper first presents a new rollover index for a triaxle bus to accurately evaluate its rollover possibility and then discusses the influence laws of the vehicle rollover dynamics to explore the mechanism of its stability. First, a six degree of freedom rollover model of the triaxle bus is developed, including lateral, yaw, roll motion of the sprung mass of the front/rear axle, and roll motion of the unsprung mass of the front/rear axle. Next, some key parameters of the vehicle rollover model are identified. A new rollover index is deduced according to the basics of vehicle dynamics, to predict vehicle rollover risk for the triaxle bus, which is verified by TruckSim. Furthermore, the influence laws of vehicle rollover dynamics by vehicle parameters and road parameters are discussed based on the simulation results. More importantly, the results show that the new method of modeling can precisely describe the rollover dynamics of the studied bus, and the proposed new index can effectively evaluate the rollover possibility. Therefore, this study provides a theoretical basis to improve anti-rollover ability for triaxle buses.
Key wordsRollover stability    Dynamic model    Triaxle bus    Rollover index    Vehicle active safety
收稿日期: 2019-04-24      出版日期: 2019-09-24
基金资助:Supported by National Natural Science Foundation of China (Grant No. 51775269)
通讯作者: Zhilin Jin,E-mail:jinzhilin@nuaa.edu.cn     E-mail: jinzhilin@nuaa.edu.cn
引用本文:   
Zhilin Jin, Jingxuan Li, Yanjun Huang, Amir Khajepour. Study on Rollover Index and Stability for a Triaxle Bus[J]. Chinese Journal of Mechanical Engineering, 2019, 32(4): 64-64.
Zhilin Jin, Jingxuan Li, Yanjun Huang, Amir Khajepour. Study on Rollover Index and Stability for a Triaxle Bus. Chinese Journal of Mechanical Engineering, 2019, 32(4): 64-64.
链接本文:  
http://qikan.cmes.org/CJOME/CN/10.1186/s10033-019-0376-0      或      http://qikan.cmes.org/CJOME/CN/Y2019/V32/I4/64
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