摘要
利用几何知识,考虑车辆轮胎侧偏性,得出主线为直行、平曲线左转和右转情况下紧急避险车道驶入角计算方法;通过ADAMS/Car行车动力分析软件,模拟不同主线下车辆以120km/h的速度和保证横向稳定性的最小转弯半径驶入避险车道的情况,运用软件后处理程序,输出横向加速度和轮胎侧偏角变化图,分析车辆在避险车道入口位置的横向稳定性,验证驶入角的计算方法的合理性,并对不同主线避险车道入口位置进行危险等级划分。
The calculation methods for angle of entering emergency escape ramp for different mainline are put forward by the geometric theory and when considering the tires cornering stiffness.Then the driving condition in emergency escape ramp is simulated by ADAMS/Car to stimulate the situation when the vehicle travels with 120km/h speed and the minimum turning radius for lateral stability.The driving lateral stability at the entrance of emergency escape ramp is analyzed by lateral acceleration and slip angle of tire,and these indicators can be obtained from ADAMS/Car.The results can verify the validation of calculation methods for entering angle and classify the hazard level for emergency escape ramp.
出处
《公路》
北大核心
2016年第9期201-207,共7页
Highway
基金
陕西省交通运输厅科技项目
项目编号12-37R
13-36R
