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.
2009, Vol. 28 
