半车车辆-道路耦合动力分析模型的研究与应用

罗红; 梁波; 吴志华; 史石荣

doi:10.3879/j.issn.1000-0887.2014.07.003

半车车辆-道路耦合动力分析模型的研究与应用

doi: 10.3879/j.issn.1000-0887.2014.07.003

罗红¹,
梁波^1,2,
吴志华³,
史石荣⁴

¹重庆交通大学, 重庆 400074;²山区桥梁与隧道工程国家重点实验室培育基地(重庆交通大学), 重庆 400074;³重庆国际投资咨询集团有限公司, 重庆 400020;⁴中冶赛迪工程技术股份有限公司, 重庆 401122

详细信息

作者简介:
罗红（1964—），女，四川人，副教授，硕士(E-mail: luohongriben@126.com)

中图分类号: O322;O302;U416;U461
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出版历程
- 收稿日期: 2014-04-22
- 修回日期: 2014-05-20
- 刊出日期: 2014-07-15

Study and Application of a 4-DOF 1/2 Vehicle-Road Coupling Dynamic Model

¹Chongqing Jiaotong University, Chongqing 400074, P.R.China;²State Key Laboratory Breeding Base of Mountain Bridge and Tunnel Engineering(Chongqing Jiaotong University), Chongqing 400074, P.R.China;³Chongqing International Investment Consultation Group CO., LTD,Chongqing 400020, P.R.China;⁴CISDI Engineering CO., LTD, Chongqing 401122, P.R.China

摘要

摘要: 在不平整路面上行驶的车辆会产生道路与车辆的耦合振动.为简化分析，先将车辆和道路视为两个子系统，然后再耦合为一个整体系统.车辆采用1/2车辆4自由度模型，道路采用弹性多层体系有限元模型，通过轮胎与路面的位移相容条件，建立车辆-道路整体耦合动力分析模型，推导出了系统的动力平衡方程组，并探讨了方程组的解耦方法，提出了反映车辆运行品质和道路设计参数的理论计算指标，为车-路耦合动力分析的深入研究，以及系统研究道路结构设计参数与车辆运行品质的相互关系提供理论基础和求解依据.此外，通过解耦和编程分析，还对沥青路面和水泥混凝土路面两种典型路面结构的运行品质指标进行了分析和评判，以期为不同路面结构设计和分析提供参考.
- 车辆 /
- 道路 /
- 耦合 /
- 动力分析 /
- 模型
Abstract: In the case of a vehicle running on a road, coupling vibration of the vehicle-road system will be induced because of the road unevenness. To simplify the analysis, the vehicle-road system was first divided into a vehicle subsystem above and a road subsystem below, then the 2 subsystems coupled with each other to form a complete system. The vehicle-road dynamic model consisted of a 4-DOF 1/2 vehicle model and an elastic multi-layer finite element road model, and they coupled through the displacement compatibility between the tires and the pavement. The dynamic equilibrium equations for the system were formulated and the decoupling method for the equations was discussed. Several theoretical indices reflecting the road design parameters and the vehicle operation quality were proposed, which provided theoretical basis and solving rationale for the systematic study of relationship between the vehicle operation quality and road design parameters. Furthermore, numerical results of the examples give comparative evaluation of the traveling quality indices of the 2 typical pavement structures of asphalt concrete and cement concrete, making a useful reference for the design and analysis of different pavement structures.
- vehicle /
- road /
- coupling /
- dynamic analysis /
- model

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参考文献(16)

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