摘要
汽车采用七自由度整车模型,公路路面和路基用粘弹性地基上四端简支双层薄板模拟,建立了三维汽车-路面-路基耦合模型。利用Galerkin法和快速积分法得到了系统的动态响应,并比较了车路耦合模型与传统汽车、路面模型的计算结果,分析了车路耦合作用对车体加速度、悬架变形、轮胎力和路面振动位移的影响。研究发现,车路耦合作用不可忽视,有必要基于车路耦合模型对汽车和路面的动态响应进行同时求解。
Abstract
A model of three-dimensional heavy vehicle-pavement foundation coupled system was presented, which is drawn as a sevenDOF vehiclemoving along a simply supported double-layer rectangular thin plate on a linear viscoelas-
tic foundation. Using Galerkin method and quick direct integration method, the dynamical behavior of the vehicle-pavement foundation coupled system was investigated numerically and compared with that of traditional vehicle system and pavement system. The effects of coupling action on vehicle body vertical acceleration, suspension deformations, tire forces and pavement displacements were discussed. The investigation shows that the coupling action should not be neglected and it is necessary to investigate dynamics of vehicle and pavement simultaneously based on the vehicle-pavement foundation coupled system.
关键词
汽车-路面耦合作用 /
汽车动力学 /
路面动力学 /
双层薄板 /
粘弹性地基
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Key words
vehicle-pavement coupling action /
vehicle dynamics /
pavement dynamics /
double-layer thin plate /
viscoelastic foundation
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李韶华;杨绍普.
重型汽车与路面的耦合作用研究[J]. 振动与冲击, 2009, 28(6): 155-158
LI Shao-hua;YANG Shao-pu.
Dynamical interaction between heavy vehicle and road pavement[J]. Journal of Vibration and Shock, 2009, 28(6): 155-158
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脚注
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