变速器壳体强度剖析(国外英文资料).doc

变速器壳体强度分析(国外英文资料) Analysis of strength of the gearbox housing The finite element structure strength of the gearbox is analyzed The gearbox is the main part of the transmission system, and in the gear transmission, the box is subjected to a large load and produces large deformation and stress. The shaft of the transmission is supported by the bearing on the box, so the force deformation of the box has a great effect on the reliability and longevity of the transmission. This section focuses on the physical modeling and finite element structure strength analysis of the gearbox. The establishment of 3d physical model of the box body of 4.1.1 gearbox M5ZRI in front of the box body can be divided into box after box two parts by eight bolt connection, as the cast aluminum, its structure is very complex, irregular shape, especially the former bell-shaped cover part of the box body is made up of a lot of curved surface. In the modeling work, large CAD software uG was used to model the three dimensional entities of the box, and the two boxes were set up before and after the two boxes. The box body model was created as shown in figure 4. Figure 4 the physical model of the box body As can be seen from the above, the entity model is very complex, and direct import ANSYS mesh is very difficult, and due to the large number of small casting structure transition fillet will make finite element analysis of structures such as too big to the computer. Therefore, it is necessary to simplify the entity without affecting the accuracy of the analysis, as shown in figure 3-9. The construction of the finite element model of the box structure of the gearbox was analyzed The finite element analysis of the gearbox is used by ANSYS. Body finite element strength analysis with the finite element modal analysis above the same method to establish the finite element model, namely in the Structure of 0 g analysis Structure module of finite element model of the network load such as pretreatment, using