高速危险工况下大客车操纵稳定性仿真与试验研究

【作者】 寇发荣；

【导师】 马建；

【作者基本信息】 长安大学 ， 车辆工程， 2003， 硕士

【摘要】 本文在考虑客车乘员人体作用的前提下，根据研究需要，分别建立起了9自由度和14自由度客车动力学模型，利用实车对建立起的模型进行了试验验证，对客车高速回避障碍物、超车、弯道制动、直线制动等输入进行了动态模拟仿真分析。同时，讨论了安装横向稳定杆、轮距变化、重心高度变化及道路附着状况等对大客车高速操稳性的影响，从而为客车的设计、安全运行等提供了宝贵的依据。更多还原

【Abstract】 Because the phenomena, drastic inclination or pitching or side sliding, which coach-buses behavour under the high-speed and dangerous occasion, basing on thinking the relative roll movement of passengers, the paper establishes the coach-bus dynamics model of nine-degree of freedom and the coach-bus dynamics model of fourteen-degree of freedom , which are verified by the experiments with true vehicle and adopted to study the maneuverability and stability of the high-speed coach-bus. The paper develops computer simulating software for each model with MATLAB language, by which the higher velocity and more dangerous occasions of the coach-bus are simulated. The paper also discusses the influential factors on the maneuverability and stability, such as, lateral stable pole, the position of gravity center, road adhesive coefficient, and so on, which provides the basis for the designing and safe running of the coach-bus.更多还原