Carburizing cylindrical gear parameterized simulation and analysis method and CAE system

Abstract

The invention relates to a carburizing cylindrical gear parameterized simulation and analysis method and a CAE system. The simulation and analysis method comprises the following steps: firstly establishing a carburizing cylindrical gear parameterized single-gear profile curve and establishing homogeneous carburizing layers; finitely modeling a carburizing gear pair by utilizing finite element software; carrying out simulation and analysis on transient state meshing performance on the carburizing gear pair and carrying out static contact analysis on a gear pair at a worst loading position by means of the finite element software; and finally carrying out performance evaluation on the carburizing gear pair according to the analysis results, so as to provide basis form the follow-up structure optimization and carburizing process improvement of the carburizing gear. On the basis of the method, secondary development is carried out on ANSYS software so as to obtain the CAE system. According to the method, the gap that effective analysis cannot be carried out on the carburizing gears in the prior art is supplied, and the procedure of carrying homogeneous material processing on the carburizing gears in the traditional technology is replaced; and the parameterized simulation and analysis method is convenient to operate and accurate in analysis result, and can be used for correctly simulating and analyzing the actual conditions of the carburizing gears.

Description

technical field [0001] The invention relates to a parametric simulation analysis method and a CAE system of carburized cylindrical gears, belonging to the technical field of carburized cylindrical gears. Background technique [0002] Cylindrical gears are widely used transmission parts in mechanical transmission. In production practice, the gears are often carburized to improve the strength, hardness, wear resistance and fatigue resistance of the gear surface. It is mainly used in automobiles, tractors, mines, etc. Where there is a large impact on gears such as machinery. After the gear is carburized, a carburized layer is formed on the surface of the gear, and the carbon concentration at different depths of the carburized layer is not the same, and gradually decreases from the outer layer to the inner layer, so the material properties of the carburized gear are from the surface layer to the inner layer. Layers vary non-linearly. The material properties of the gear are an ...

AI Technical Summary

Problems solved by technology

The material properties of the gear are an important factor affecting the working performance of the gear, and it is also the basic condition for the design and optimization of the gear structure. However, the traditional gear design method is only suitable for homogeneous gear materials, and cannot accurately calculate the strength and performance of the carburized gear. , it is usually treated as a homogeneous material in the calculation. In order to ensure the performance requirements, the strength test is usually carried out after the carburizing gear is processed. This method is not only time-consuming and laborious, but also cannot be used for the design calculation and Structural optimization

With the development of CAD / CAE technology, three-dimensional simulation analysis technology can be used for solid modeling and simulation analysis of various gear mechanisms. Systematic research on modeling and analysis techniques

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