Fatigue Lifetime Study on Spiral Bevel Gears Using Finite Element Method
Dynamic meshing of Spiral bevel gears is a compli cated geometric, material, and contact non-linear problem.The finite element method (FEM) is a common and effective approach and direct constraint method is highly advantageous to solve contact non-linear problems. In this paper, a three dimensional nonlinear contact analysis model for a pair of spiral bevel gears was established. Based on this model, dynamic meshing simulation under 200rpm and 462.1N.m of torque was carried out in a meshing period. The regular pattern indicating variety of tooth surface contact stress and tooth root bending stress with different meshing position was presented. Then this paper analyzed the contact fatigue and root bending fatigue strength, estimated the major region of fatigue, and finally obtained the least tooth root bending fatigue lifetime. The results will act as a reference for further design of spiral bevel gears.
Spiral bevel gears non-linear dynamic fatigue life time FEM
Yuan LI Xu HAN Nanhai YE Jiehong YUAN
State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changs State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changs National University of Defense Technology, Changsha, Hunan 410002, P.R.China
国际会议
长沙
英文
1353-1356
2010-03-13（万方平台首次上网日期，不代表论文的发表时间）