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引入驾驶员行为的风-汽车-桥系统耦合振动研究

, PP. 42-49

Keywords: 桥梁工程,风-汽车-桥系统,驾驶员反应行为模型,安全性分析,状态矢量空间方程

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Abstract:

?对现有解决风环境下车辆行驶问题的驾驶员反应行为模型进行了回顾和对比,采用改进的Baker驾驶员反应行为模型,引入了考虑驾驶员反应行为模型的车辆运动平衡方程、变形以及力的协调条件,建立了引入驾驶员反应行为模型的车辆事故分析状态矢量空间方程,将其与以往未引入驾驶员反应行为模型的风-汽车-桥系统所建立的汽车和桥梁2个子系统运动方程进行耦合,从而建立了引入驾驶员反应行为模型的随机车流下的风-汽车-桥系统运动方程,并对该方程的求解方法进行了研究,编制了相应的分析模块;对已有的车辆事故评价准则进行了改进,给出了对应于不同风速的风致车辆事故临界车速。结果表明:该分析模块由于引入了驾驶员反应行为模型,从而可以同时进行行车安全性分析和舒适性评价。

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