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汽车安全与节能学报

汽车安全与节能学报 ›› 2012, Vol. 3 ›› Issue (2): 136-141.DOI: 10.3969/j.issn.1674-8484.2012.02.006

• 汽车安全 • 上一篇    下一篇

侧风干扰下半挂汽车列车行驶稳定性仿真

张翼鹏，丁能根*   

  1. 北京航空航天大学 交通科学与工程学院，北京 100191
  • 收稿日期:2012-02-15 出版日期:2012-06-18 发布日期:2012-07-04
  • 通讯作者: 丁能根，副教授。E-mail:dingng@buaa.edu.cn
  • 作者简介:张翼鹏（1989—），男（汉），山西，硕士研究生。
  • 基金资助:

    国家自然基金资助项目（51175015）

Simulation of driving stability of a tractor semi-trailer in cross-wind

ZHANG Yipeng, DING Nenggen*   

  1. School of Transportation Science and Engineering of Beihang University, Beijing 100191, China
  • Received:2012-02-15 Online:2012-06-18 Published:2012-07-04

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摘要： 为研究半挂汽车列车的行驶稳定性受侧风干扰的影响，采用TruckSim 软件，建立其动力学
模型和侧风模型。在不同风向、不同风速以及不同车速条件下，仿真分析整车在阶跃转向输入下侧倾
角、横摆角速度和牵引销转角等的响应；得到了稳定行驶的风速及车速的临界值。侧风风速超过临界
值，挂车首先发生侧翻；车速超过临界值，整车进入严重折叠甩尾和侧翻等不稳定状态。仿真结果
表明：对阶跃转向工况行驶的半挂汽车列车而言，逆向侧风比顺向侧风的影响更大，加剧了半挂车的
侧倾。该结果可对半挂车侧向风稳定性提供参考和借鉴。

关键词: 汽车安全, 行驶稳定性, 半挂汽车列车, 侧向风, 仿真分析, 风速及车速的临界值

Abstract: A vehicle dynamics model and a cross-wind model were constructed using TruckSim software to
study the stability of a tractor semi-trailer in cross-wind. Digital simulations were carried out at different wind
heading angles, wind speeds and vehicle speeds with step steering input to analyze different vehicle responses
of the roll angle, the yaw rate and the hitch angle and then to obtain the critical vehicle speed and critical wind
speed for the tractor semi-trailer with stability driving. The trailer turns over first when the wind speed is more
than the critical value. The tractor semi-trailer turns to be drifting, rollover and unstable seriously when the
vehicle speed is larger than the critical value. The analyses show that the effect on the tractor semi-trailer with
step steering in a counter direction cross-wind is stronger than those in a positive direction cross-wind. The
results can provide stability analysis references for tractor semi-trailers in cross-wind.

Key words: automotive safety, driving stability, tractor semi-trailer, cross-wind, digital simulation analysis,
critical vehicle speed and critical wind speed

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