Dynamics simulation of reducer is one important research direction in current research area.The new type of filter transmission parts three-dimensional simulation model is established by using the CAD software Pro/E and the mechanical system dynamics simulation software ADAMS.The methods and processes of model establishment is expounded and the changes of meshing force under the conditions of a certain speed is studied.On this basis

consider the impact of internal motivation factors as mesh stiffness and mesh damping to the dynamics respond.It provides reference to reduce vibration.