孙会来　张廷猛　李研强　李传康　陈浩　刘增强

摘 要：半挂汽车再成为现代中长公路的运输中重要的运载工具，与单体货车相比牵引车-半挂车之间的特殊的连接方式使半挂车的动力学系统变得复杂。由于半挂车的纵向尺寸长、车轮距小、质心高、载重量大的特点，在高速行驶过程中转弯、超车、变道时稳定性急剧下降，容易发生事故。通过查阅前人研究，结合查阅到的资料与自己的实践经验相结合提出研究的方向，归纳得到了合理的研究方法和探索思路。通过查阅典型试验工况试验的国家标准和国际标准，为本文的车辆仿真试验提供了可靠的指引，确定了各试验的侧重点，并制定了相应试验的实验内容和试验方法。根据已有数据，参考了某款牵引车产品，通过部分车辆参数的计算，完成了车辆设计的主要步骤和相应内容。试验中应用了TruckSim软件，掌将理论模型与软件相结合，最后建立了基于TruckSim的整车模型。进行仿真试验，建立对应的环境模型，对多参数之间的关系进行探索，对数据进行收集、整理和分析，并确定各种试验工况下的侧翻的极限值域。关键词：重载汽车;侧翻;Trucksim仿真;模型构建中图分类号：U467  文献标识码：A  文章编号：1671-7988（2020）11-124-04

Abstract： Semitrailer has become an important vehicle in the transportation of modern medium and long highway. Compared with single truck， the special connection between tractor and semi-trailer makes the dynamic system of semi-trailer more complex. Due to the characteristics of the semi-trailer， such as long longitudinal dimension， small track width， high center of mass and large load capacity， the stability of the semi-trailer decreases sharply during turning， overtaking and lane changing， which is easy to cause accidents. Through consulting the previous studies， combining the materials and practical experience， the paper puts forward the research direction， and summarizes the reasonable research methods and exploration ideas. By referring to the national and international standards of the typical test condition test， this paper provides reliable guidance for the vehicle simulation test in this paper， determines the key points of each test， and formulates the corresponding test contents and test methods. According to the existing data， referring to a certain tractor product， the main steps and corresponding contents of vehicle design are completed through the calculation of some vehicle parameters. In the experiment， the software of trucksim is applied， and the theoretical model is combined with the software. Finally， the whole vehicle model based on trucksim is established. Carry out simulation test， establish corresponding environment model， explore the relationship between multi parameters， collect， sort and analyze the data， and determine the limit range of rollover under various test conditions.Keywords： Heavy duty vehicle; Rollover; Trucksim Simulation; Model buildingCLC NO.： U467  Document Code： A  Article ID： 1671-7988（2020）11-124-04

前言

半掛汽车再成为现代中长公路的运输中重要的运载工具。与单体货车相比牵引车与半挂车之间的特殊的连接方式使半挂车的动力学系统变得复杂。由于半挂车的纵向尺寸长、车轮距小、质心高、载重量大的特点，在高速行驶过程中转弯、超车、变道时稳定性急剧下降，容易发生事故。……