Dynamic Modeling of Moving Load on a Rail Track with a Visco-Elastic Foundation Using Finite Element Method  Fulltext 

[ Jalili ] - phD Student Mechanical Engineering Department ; Sharif University of Technology , Tehran, Iran
[ Delnavaz ] - phD Student Mechanical Engineering Department ; Sharif University of Technology , Tehran, Iran
[ Ahmadian ] - associate Professor Mechanical Engineering Department ; Sharif University of Technology , Tehran, Iran

خلاصه مقاله:

For many years, motion of moving load on beams has been an interesting subject for researchers. The train running on the rail is an example of moving load on a beam resting the visco-elastic foundation. Most of the simulated models consider only effects of vertical interaction of rail track and wagon systems. They usually ignore the effects of longitudinal forces and bending moments acting on the rail by the wheels due to the wheel interaction with the rail the effects on both longitudinal forces and bending moments on dynamic of the rail resting on visco-elastic foundation are investigated by using finite element method. According to simulated results , by increasing the longitudinal force acting on the rail, longitudinal and vertical displacements of the rail increase. Also, the effects of train speed on longitudinal and vertical direction of the wheel are discussed.

Rail - Visco-elastic foundation - Longitudinal moving load - Newmark - bmethod