Dynamic Based On The Contact Dynamics Of Spiral Bevel Gear Meshing Performance Of Finite Element Analysis

Spiral bevel gears have application in lots of types of equipment as one of the most important mechanical transmission elements in many industrial fields such as motor-vehicle, aviation and ship craft. The current trend is towards high-speed and heavy-load. The meshing contact-impact and contact performance of spiral bevel gears has a strong impact on the whole machine performance. The necessity of studying the dynamic property of spiral bevel gears was discussed via analyzing the mesh theory, the basic contact dynamics and the actual work condition.The process of spiral bevel gears'dynamic meshing is some problem with respect to contact dynamics of highly nonlinear boundary. Based on the theory of contact dynamics and finite element method, a finite element model, in which the influence of inertial load was concerned and the meshes was optimized, was introduced for the objective and accurate dynamic meshing analysis of spiral bevel gears. The result shows that the inertial load affects the dynamic meshing characteristics a lot.Based on the reasonable model, the characteristics of the spiral bevel gears in dynamic meshing were studied. Obtained the laws of meshing contact-impact, the contact force, the contact stress, the tooth root bending stress and the contact area in the dynamic meshing of spiral bevel gears. The contrast research shows that the rotate speed has an obvious influence up on the characteristics of the spiral bevel gear in dynamic meshing, and that the load affects it little. Take the example of the two typical work factors like speed and load. The influences of speed and load on the dynamic meshing characteristics were discussed. The contrast research shows that the rotational speed has an obvious influence up on the characteristics of the spiral bevel gear in dynamic meshing, and that the influence of load is related to the rotational speed.The marketing literature address that axle deflections have a significant impact on gear tooth strength. Unexpected deflections can cause severe edge loading that is detrimental to gear surface life as well as noise performance. Therefore, the variability of axle deflections and their effects on the dynamic performance in the dynamic meshing of spiral bevel gears was studied.