Study on Dynamic load characteristics of circular arc tooth synchronous belt based on RecurDyn

Using the UG software, the new type arc tooth synchronous belt and pulley solid model are created. In view of the synchronous belt and pulley transmission belongs to the multi rigid multi flexible coupled hybrid multi body system dynamics problem, carry out the flexible treatment of synchronous belt by HyperMesh, and import into the multi body dynamics software RecurDyn and the dynamic virtual prototype simulation model of the new type arc tooth synchronous belt gear transmission is built ,simulation analysis about the load distribution of the dedendum and addendum of teeth in transmission system is made under different gap, reveal the rule of effects on stress distribution of synchronous belt analyzed in detail under different gap. The results showed that the stress of the belt tooth increases together with increasing of the side gap on the transmission process. A digital simulation and design method to design the new type arc tooth synchronous belt tooth shape, analysis of the transmission performance are provided. Keywords-synchronous belt;drive;FEM;MFBD;Recurdyn