侧风对汽车行驶的影响  

The effect of the crosswind on moving vehicles

作　　者：李宁[1] 强大壮 王春会[1] 蔡旭冰 LI Ning;QIANG Da-zhuang;WANG Chun-hui;CAI Xu-bing(Department of Information Engineering,Chaoyang Teachers College,Chaoyang Liaoning 122000)

机构地区：[1]朝阳师范高等专科学校信息工程系,辽宁122000

出　　处：《辽宁师专学报（自然科学版）》2019年第4期97-100,共4页Journal of Liaoning Normal College(Natural Science Edition)

摘　　要：车辆行驶过程中经常受到侧风的作用,为详细分析侧风对汽车行驶的影响,建立了汽车存在侧向力干扰时的动力学模型,分析车辆的跑偏情况,给出跑偏量计算公式.为验证动力学模型,进行了实车试验.在样车质心的前后施加侧向干扰力的直线行驶试验,揭示出四轮等转矩驱动时,车辆跑偏方向与侧向干扰力绕车辆质心的横摆力矩方向相同,跑偏量随侧向干扰力矩增加而增大.试验最终结果与理论值一致,为深入研究侧风对汽车行驶的影响提供了借鉴.The vehicles are often affected by the crosswind while driving.In order to analyze the effect of the crosswind on vehicles while driving in detail,we establish the kinetic model of the vehicles with interference of lateral force,analyze the deviation of the vehicles,and give the formula for calculating the amount of deviation.To verify the kinetic model,we perform a real vehicle test.The linear driving test of applying lateral interference force to the front and back of the sample car's center of mass reveals when the vehicle is driven by four-wheel equal torque,the vehicle′s deviation direction is the same as that of the yaw moment of the lateral interference force around the vehicles′center of mass,and the deviation increases with the disturbance torque.The final result of the test is consistent with the theoretical value,which provides a reference for further research on the effect of crosswind on moving vehicles.

关 键 词：动力学模型 侧向干扰 跑偏量 道路试验 

分 类 号：U461.1[机械工程—车辆工程]