Abstract
According to automotive industry yearbook statistical analysis of relevant information, it is expected to be about 15 percent growth of cars during the "11th Five-Year Plan" period. In 2010, the automobile industry will reach more than 12.73 million. The rapid growth in automobile industry is an opportunity as well as a challenge to the domestic automobile manufacturers. As the heart of cars, engine is urgent to be studied. It represents the strength and technological level of an automobile manufacturer. Engine consists of many parts. Power transmission, as the first component, links in the particularly important position of the engine. The requirements to the strength and hardness of a good engine are very high, which means that the research and development personnel have to make an effective mechanics calculation to the power transmission. Because of the complexity of the power transmission structure, it can only approximately reflect its force and deformation situation by using traditional mechanical method, which can’t meet the need of further analysis. However, ANSYS software, the most advanced analysis method at present, is designed to solve this kind of problem. It makes use of the analysis, forecast, and calculation of theoretical finite element technology to the hardness and strength of some key parts. In this paper is to link ANSYS software for 3D modeling, by grid, and then impose the appropriate restraint, the last link to the keyhole on the inner surface of load, in ANSYS calculation and analysis for the results.