Tooth contact finite element analysis of extension epicycloid hypoid gear

Through the existing three-dimensional geometric model of finite element grid generation,hypoid gear dynamic contact was simulated to obtain variations of the tooth surface contact area and force in different operating conditions of vehicle operation(ahead,astern,gap ahead,gap back).The simulation results show that the gear contact area and contact force are more stable and that the gear dynamic contact performance is better when the pinion-concave drives the gear-convex(that is ahead),while the gear damage will increase and mesh is less stable at vehicles run gap.