Optimization Design And Finite Element Analysis Of The2K-H Planetary Gear Reducer Based On UG Parameterization Model

The planetary gear reducer is various and applied widely in mechanical equipment. It has advantages of small volume, light quality, big transmission ratio, carrying capacity and high transmission efficiency. The traditional static design method of planetary gear reducer are more and more unadapted. The modern design method can improve product quality and reduce production cost. It has important significance for promoting the development of the design of gear transmission technology.This paper made optimization design based on the2K-H planetary gear reducer as the research objective, aiming at the deficiency of traditional design. It established the optimization mathematic model of planet wheel with the smallest and most compact planet gear volume as the objective by determining the design variables, objective functions and constraint conditions. It calculated optimization parameters under Genetic Algorithm(GA) in MATLAB optimized tool. Then this paper accomplished the function of the entire parameterization3D model and virtual assembly for involutes gear based on UG3D solid modeling, assembly function and secondary development technology. This paper used analytical module of motion in UG for motion simulation, the results indicated that meet the kinematic requirements, and verifies the correctness of the parametric modeling and assembly. This paper also used the finite element analysis method in ANSYS Workbench for bending stress of gears, static force of planetary carrier, contact stress of meshing gears based on the finite element method for contact problems and modal analysis. The results indicated that meet the strength requirements, and it didn’t sets up resonance phenomenon in work. This research complies with the design requirements and provides a theoretical reference of the design of other planetary reducer.