Through the study of the forming process of involute spiral tooth surface, and the application of ANSYS parametric language to establish the three-dimensional modeling of the gear, the analysis of the meshing situation of the gear pair, the preliminary realization of the integrated design of CAD and CAE of the gear, which provides ideas for the intelligent and information-based design of the gear system, but due to the limited time and energy, there are still the following problems to be studied and solved:
1) Study on the involute spiral tooth surface equation with modification. Gear modification is an effective way to solve the vibration of the gear system. Generally, the contact between the two tooth surfaces can be changed by the corresponding parameters of the tooth direction and the tooth height to reduce the vibration of the gear system. This paper only studies the theoretical involute spiral tooth surface, and does not discuss the tooth profile modification, so there is a certain deviation between the tooth profile equation studied in this paper and the actual gear profile, and the relationship between tooth profile modification and tooth surface contact cannot be analyzed in detail, so the next step of this paper needs to study the involute spiral tooth surface equation with modification.
2) Further study on the boundary conditions of the finite element contact model of gear pair. At ANSYS In the software, the contact algorithm is not easy to converge when loading the force load, and the contact algorithm is easy to converge when loading the displacement load, but the gear system is generally loaded with the force load in the actual work, so there is a difference between the displacement load loaded in this paper and the force load loaded in the working process of the gear system. The next step of this paper is to carefully study how to use the finite element method Load on the model. In the working process of the gear system, thermal deformation should be considered, so the next stage of this paper also includes the loading of thermal load. The complexity of the working conditions of gear system requires that the contact model of gear pair study different forms of boundary conditions.
3) Research on the optimization model of multi-objective gear pair. The gear pair optimization model established in this paper only considers the transmission stability, so the designed gear is only one aspect of performance, which can not meet the current requirements of many aspects of the gear system performance, so it is necessary to study the multi-objective gear pair optimization model. In order to design gear with optimization method, CAD and CAE software should be used as the platform to identify the design parameters of gear pair by programming language, and the performance of gear pair can be expressed by programming language. In this way, the integration of CAD and CAE of gear design can be completed. The follow-up research work of this paper is to describe the optimization model of gear pair with multi parameters and multi objectives by programming language.