Simulation and Life Prediction of Gear Meshing Process of Gearbox of A Crawler Vehicle

A crawler vehicle gearbox was easy to invalidation, stress change of the gear tooth meshing process was difficult to accurately measure, and the life prediction was not accurate. this paper established a finite element model of gear meshing, the analysis of the gear teeth began to come into contact with the complete separation of highly nonlinear dynamic process, and the simulation results of test, and established the life prediction model by nCode Designife software, and estimated the gear fatigue failure position and life. Compared with the actual results verified the feasibility of dynamic analysis method of gear meshing, for gear strength check, the reference for the optimization design and fatigue life prediction.