Abstract
Timing belt is widely used in mechanical systems. It transmits rotation from driving pulley to driven pulley. Belt looks like a simple object but it is composed by belt surface, rubber, and core. And, its characteristic is not so simple. For example, it is stiff for tension and is soft for bending. Also, meshing between belt teeth and pulley teeth excites vibration of belt. To simulate such behavior of belt, Finite Element Analysis software has been used. It is true it is possible to model it precisely but it is not easy to model it and simulate its dynamic behavior. To evaluate transient behavior of belt, long simulation, for example 60 seconds, is required. For this purpose, simplified approach is preferable and multibody dynamics software with flexible body capability is a useful tool for it. In this paper, an approach to combine Beam element of FEM and rigid body with precise teeth geometry is employed.
