For the gear transmission system of tracked vehicles, a nonlinear dynamic model of lateral torsional coupling is established. Combined with the analysis, the influence of the degree of freedom of swing is ignored under the condition of ensuring the calculation accuracy and taking into account the calculation efficiency.
Firstly, the dynamic meshing force, the load sharing coefficient of planetary transmission, the reaction force of bearing and the dynamic stress of transmission shaft are analyzed;
Then, the dynamic characteristics of each gear in gear transmission system with different machining accuracy and dynamic balance accuracy are compared and analyzed.
At last, based on the nonlinear dynamic model of lateral torsional coupling, the dynamic performance optimization model of the gear transmission system of tracked vehicle is established.
The optimization platform is built and the optimization design is carried out by integrating the nonlinear dynamic program of transverse torsional coupling with the optimization software. The optimization results show the feasibility of the optimization model and provide reference for improving the dynamic performance of the gear transmission system of tracked vehicles.