The virtual prototyping model of synchronous belt drive is established and the simulation analysis of movement process is carried out by using the software RecurDyn.Through the processing and analysis of the dynamic data

combining with the structure characteristics and the dynamic characteristics of the synchronous belt drive

the model of the synchronous belt drive is optimized from the point of improving the start up method

avoiding excitation frequency

and adding the tensioning device as well as optimizing the tooth shape

the reference for the future research of the synchronous belt drive is provided.