摘要
圆柱齿轮应用广泛,建立适用范围广、便于计算的圆柱齿轮弯曲疲劳寿命预测模型有重大意义。通过齿轮弯曲疲劳试验结合有限元模型仿真结果,计算得到了不同应力幅值下齿根处能量累计曲线;在能量累计曲线的基础上,得到不同应力幅值下的断裂累计能曲线。基于Palmgren-Miner线性累积损伤理论和以上曲线,提出了一种圆柱齿轮弯曲疲劳寿命预测模型。采用该模型分析了不同应力幅值下的圆柱齿轮弯曲疲劳试验结果,均处于模型预测结果3倍范围内,证明该模型可以较为准确地预测圆柱齿轮弯曲疲劳寿命。
It is of great significance to establish a cylindrical gear bending fatigue life prediction model with a wide range of applications and easy calculation.Through the gear bending fatigue test combined with the simulation results of the finite element model,the energy accumulation curve at the root of the tooth under differ⁃ent stress amplitudes is calculated.On the basis of the energy accumulation curve,the fracture cumulative ener⁃gy curve under different stress amplitudes is obtained,and a cylindrical gear bending fatigue life prediction mod⁃el is proposed based on the Palmgren-Miner linear cumulative damage theory and the above curve.Combined with the test results of gear bending fatigue tests under different stress amplitudes,the test results are all within the±3 life factor scatter bands,which proves that the model can accurately predict the gear bending fatigue life.
作者
刘诗骢
杨建伟
李欣
高翔
Liu Shicong;Yang Jianwei;Li Xin;Gao Xiang(School of Mechanical-Electronic and Vehicle Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044,China)
出处
《机械传动》
北大核心
2023年第8期97-103,共7页
Journal of Mechanical Transmission
基金
国家自然科学基金项目(51905028)。
关键词
圆柱齿轮
能量累计
疲劳寿命预测
疲劳试验
有限元分析
Cylindrical gear
Energy accumulation
Fatigue life prediction
Fatigue test
Finite element analysis
