Abstract
In recent years, there is a trend of small pitch, high-speed, multiple species and high-Performance in the study of silent chain, and the silent chain drive has been used more widely in the timing drive system of auto engine. The silent chain drive has been used in the car engine timing drive system and oil pump drive system in many famous international auto companies, such as GM,Ford,Chrysler,Benz,BMW,Audi,V W and so on . The silent chain has the characters of compact size ,high reliability and high wear resistance,which the gear drive and belt drive don't have. So there are broad prospects in the silent chain drive. This paper analyzes the stress distribution of the pin and the chain plate through building the flexible multi-body contact model of rounded-jointed silent chain and sprocket by using the multi-body dynamics software Recurdyn V7R1, which is an important Mechanics basis for the structure design and the optimization of the silent chain plate.