| The drive axle is a vital important component to automobile, because its structure constituent and property have much direct effect on kinematics and dynamic performance of automobile. The drive axle bears large load, while the traditional mechanics technologies unable to obtain the defect of stress that distributed the overall the transaxle. In this paper, detail description is given for the structure constitute and working characteristic of drive axle, and traditional mechanics calculation technologies, three-dimensional entity's modeling method, finite element method, etc, are adopted. Base on these, the analysis system of CAE on drive axle is development. In this system, products development period and development fee are significance reduced.In this thesis, parameterized three-dimensional model of drive axle is established by UG, and then interface of parameterize design is made by Visual C++. The geometry modle is import to PATRAN, mechanics model of axle shell is built, and Finite element method has been used to analysis stress, strain, deformation by using PATRAN. The picture about stress, strain and deformation is exported in this paper after finite element analysis. Through the analyses of CAE, the weak point of the drive axle have been found out, which identify actually with the practice. Based on this, the Visual C++ with the powerful ability combined with PCL language realizes the seamless interface between the customer surface developed by Visual C++ and PATRAN. Making parameterized modeling of the drive axle, meshing automatically, loading and analysing, etc. can be done in this system.
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