基于Trucksim的弯坡组合路段临界车速确定方法  

Method for Determining Critical Speed of Curve-Slope Combination Section Based on Trucksim

作　　者：阎莹[1] 刘革 田敏[1] 刘佳乐 穆岩 YAN Ying;LIU Ge;TIAN Min;LIU Jiale;MU Yan(College of Transportation Engineering,Chang'an University,Xi'an 710064,Shaanxi,China;School of Materials Science and Engineering,Chang'an University,Xi'an 710064,Shaanxi,China)

机构地区：[1]长安大学运输工程学院,陕西西安710064 [2]长安大学材料科学与工程学院,陕西西安710064

出　　处：《重庆交通大学学报（自然科学版）》2021年第9期49-54,共6页Journal of Chongqing Jiaotong University(Natural Science)

基　　金：陕西省自然科学基金项目(2018JM5117)。

摘　　要：为探究不同弯坡组合与车辆失稳时临界车速之间的关系,选取6轴铰接列车为实验车型,通过Trucksim软件建立人-车-路耦合系统,进行不同弯坡组合工况下车辆失稳仿真实验。基于最小二乘原则,通过对仿真结果拟合与回归分析,建立了弯坡组合路段临界车速预测模型;并在某特定工况下验证了该模型的合理性。结果表明:该模型预测临界车速与Lusetti模型相近,并且在某特定工况下计算误差最小。该研究为车辆在弯坡路段临界车速预测提供了一种安全、有效的方法参考。In order to explore the relationship between different combinations of curve and slope and the critical vehicle speed when the vehicle was unstable,the 6-axis articulated train was selected as the experimental model.And a human-vehicle-road coupling system was established by the Trucksim software to carry out the vehicle instability simulation experiment under different curve-slope combinations.Based on the principle of least square,the critical speed prediction model of the curve-slope section was established by the fitting and regression analysis of the simulation results.Finally,the rationality of the proposed model was verified under a certain working condition.The results show that the critical speed predicted by the proposed model is close to that predicted by Lusetti model,and the calculation error is the smallest under a certain working condition.This study provides a safe and effective method for predicting the critical speed of vehicles in curved slope sections.

关 键 词：交通工程 弯坡组合路段 Trucksim仿真 临界车速 预测模型 

分 类 号：U491.25[交通运输工程—交通运输规划与管理]