Based on Hertz elastic theory and gap collision pair theory

according to equivalent mechanics model of Geneva mechanism

the system rigidity and damping are determined

and the system dynamics differential equation is constructed by the Lagrange theory.An actual example is given;the solutions and the graphs are completed by MATLAB software.Taking MATLAB/SIMULINK as the simulation platform

the dynamic simulation model of Geneva mechanism is founded according to dynamic equation.The kinematic curves which more approached to reality are obtained.The simulation results reappear the influences caused by the component elasticity and the gap of wheel pair brings to the mechanism movement

The theory foundation for improving dynamic characteristic of mechanism is provided.