The gear strength calculation is based on the calculation formula proposed by and. Various coefficients are used to correct the material strength and gear load, and the influence of gear accuracy is considered. The calculation method close to the critical load is the main method. There are still many errors in this analytical calculation method. With the development of the times and the progress of mechanical industry, higher requirements are put forward for gear design and transmission system. The power transmission device is developing in the direction of miniaturization, high speed, low noise and high reliability.
In order to improve the bearing capacity of gear transmission, higher requirements are put forward for the analysis of gear bending strength, and scholars at home and abroad have put forward many new research methods. At present, the main methods of gear bending strength analysis include analytical method, experimental analysis method and numerical calculation method. Analytical methods mainly include material mechanics method and elastic mechanics method; The experimental analysis methods mainly include optical measurement and electrical measurement; The numerical calculation methods mainly include finite element method, boundary element method and finite difference method.
With the application of finite element method in gear strength analysis, finite element method plays a more and more important role in gear bending strength analysis, and many valuable conclusions and results are obtained; The application of these results must be verified by experiments, and the experimental analysis methods have been produced, and important development has been made.