From the current research status of gear dynamic analysis, it can be seen that the dynamic simulation analysis of cylindrical gear accounts for the majority, and the dynamic analysis of involute straight bevel gear is relatively few; The analysis of single tooth or partial tooth is more, and the whole tooth is less; There are more two-dimensional element analysis and less three-dimensional element analysis; There are more static analysis and less dynamic analysis of involute spur bevel gear system; More ideal models are used for analysis, and less models close to the actual working conditions are used; Considering the instantaneous stress and strain of meshing, there are few studies on other dynamic performance parameters; The analysis of static transmission error is more than that of dynamic transmission error.
The dynamic analysis of involute straight bevel gear transmission system is carried out by using romax software. Considering the manufacturing and installation errors of teeth and the elastic deformation between teeth, the dynamic performance of involute straight bevel gear transmission in the actual state is obtained, and the changes of transmission error, tooth load distribution and fundamental frequency response of involute straight bevel gear transmission are derived, The influence of modification on the dynamic performance of gear is analyzed, so as to guide and promote the development of modification technology of involute straight bevel gear.