Abstract
In this paper, a simulation of jumping of round shape synchronous belt is reported. The influences of deflection of pulley shaft, the belt installation tension, the elastic modulus of cord, the distance between pulleys shaft and the gear ratio on the jumping torque are discussed. Experiments are also carried out for verifying the calculation results of FE analysis. It is found that jumping torque load increases as bending stiffness of the pulley shaft increases. Likewise, the jumping torque load increases almost proportionally as the installation tension increases. And the jumping torque load increases as winding angle on driving pulley becomes large. But the jumping torque load decreases as the distance of pulley shaft increases.
