考虑大货车横向稳定性的平曲线设计控制指标

发布时间：2018-03-23 09:12

本文选题：道路工程　切入点：平曲线设计　出处：《重庆交通大学学报(自然科学版)》2015年03期 　论文类型：期刊论文

【摘要】：为研究驾驶员行为和道路线形指标对大货车横向稳定性的影响,选择六轴半挂车为典型车型,采用Trucksim动力学仿真软件建立车辆动力学闭环仿真模型,以侧向加速度作为大货车横向失稳风险评价指标。基于统计学的理论,运用MATLAB回归建立大货车侧向加速度预测模型,得到了不同设计速度条件下典型车型的极限最小转向半径值。研究结果表明:采用多自由度大货车模型,考虑横向滑移条件计算得到的平曲线极限最小半径比我国标准所规定的平曲线极限最小半径在各级设计速度条件下均大10%左右。研究成果量化了驾驶员行为和道路线形指标对大货车横向稳定性的影响,并对平曲线设计控制提出了建议指标,对今后道路安全设计具有参考价值。
[Abstract]:In order to study the effect of driver behavior and road alignment index on the lateral stability of large trucks, six axle semi trailer for typical models, using the dynamic simulation software Trucksim establish the vehicle closed-loop simulation model with lateral acceleration as truck lateral instability risk evaluation index. Based on the theory of statistics, using MATLAB regression to establish a large truck lateral acceleration the prediction model of typical vehicle limit minimum turning radius value under different design speed conditions. The results show that the multi DOF truck model, calculated considering lateral slip condition of curve minimum limit radius ratio standard of our country under the curve of limited minimum radius at all levels of the design speed conditions were 10% about research results to quantify the impact of driver behavior and road alignment index on the lateral stability of large trucks, and the. The line design control put forward the suggested index, which is of reference value to the road safety design in the future.

【作者单位】：长安大学特殊地区公路工程教育部重点实验室;长安大学公路学院交通工程研究所;
【基金】：教育部博士点基金新教师项目(20120205120013) 交通运输部应用基础项目(2014319812170) 陕西省自然科学基金项目(2012JQ7001) 长江学者和创新团队发展计划资助项目(IRT1050) 中央高校基本科研业务费专项资金项目(2013G2211005&CHD2011JC048)
【分类号】：U412.34

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