The chain transmission’s feature, the main failure form of roller chain and the research for the simulation of the chain transmission mechanism are introduced. Taking the simulation of the chain transmission mechanism in feeding system of a mechanical equipment as the research object, the kinematical properties and the affecting factors are analysed in this paper. It adopts the advanced connection pair to establish relationship between the sprocket-wheel and rollers, and realistically simulates the kinematical characteristics of the chain transmission mechanism. It provides a reference for the optimization design of the structure of the chain and sprocket wheel, through the analysis on the moving velocity and acceleration curve of the chain. It also provides a basis for verifying whether the chain and sprocket-wheel meet the design requirements or not.

On the basis of the design and calculation, motion analysis and structural analysis were carried out on hydraulic manipulator hand structure working in the radiation environment by using modeling and simulation technology. Concluded that the simulation results can be intuitive to inspect the kinematic characteristics of the manipulator hand structure, and provide the basis for the design of the control system.

The preceding separating technology of municipal solid waste is the premise and key to realizing waste comprehensive treatment and improving resource utilization. To the low efficiency of paper and plastic's separation, using the basic structural parameters of Horizontal air-separator, a finite element model is established based on Gambit software. Targeting at the pressure distribution and velocity distribution of the internal flow field under the condition of different wind direction and different wind speed, CFD is used for the analysis, and results shows that the wind angle between 15° and 20° and wind speed between 12 m/s and 14m/s is the optimum condition to get an ideal purity and efficiency of the light waste when winnowing domestic waste in the city of southern China.

By using modeling and simulation technology, motion simulation and structural analysis were carried out on hydraulic manipulators structure working in the radiation environment. The results of motion simulation can test the manipulators kinematics characteristic, and provide a basis for structural optimization design.Structural analysis could be used to validate manipulators s tructure is able to withstand the movement of stress, strain or not. Manipulators structure design can be properly improved by use of the structural analysis.