1.重庆大学 机械传动国家重点实验室, 重庆 400044
张文博(1993— ),男,湖北京山人,硕士研究生,研究方向为齿轮的接触疲劳研究。
刘怀举(1986— ),男,山东济宁市人,副教授,博士生导师,主要研究方向为齿轮摩擦学与疲劳研究。
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张文博,刘怀举,朱才朝等.夹杂物对齿轮接触疲劳性能影响的仿真分析[J].机械传动,2020,44(11):14-20.
Zhang Wenbo,Liu Huaiju,Zhu Caichao,et al.Simulation Analysis of the Influence of Inclusion on Contact Fatigue Performance of Gear[J].Journal of Mechanical Transmission,2020,44(11):14-20.
张文博,刘怀举,朱才朝等.夹杂物对齿轮接触疲劳性能影响的仿真分析[J].机械传动,2020,44(11):14-20. DOI: 10.16578/j.issn.1004.2539.2020.11.003.
Zhang Wenbo,Liu Huaiju,Zhu Caichao,et al.Simulation Analysis of the Influence of Inclusion on Contact Fatigue Performance of Gear[J].Journal of Mechanical Transmission,2020,44(11):14-20. DOI: 10.16578/j.issn.1004.2539.2020.11.003.
齿轮中的非金属夹杂物对齿轮接触疲劳强度有显著影响,为了提高齿轮的疲劳性能,研究齿轮中的夹杂物对疲劳寿命的影响机理很有必要。为此,建立了含夹杂物的齿轮副的有限元模型,基于Brown-Miller多轴疲劳准则预测了齿轮的接触疲劳寿命。主要探究了夹杂物的尺寸、弹性模量、深度以及夹杂物排列方式对齿轮接触疲劳性能影响。结果表明,夹杂物尺寸的增大加大了应力集中区域;夹杂物和基体的弹性模量相差越大危害越大;当夹杂物位于约0.49倍接触半宽深度时危害最大;两临近夹杂物的排列角度和间距对解除疲劳强度也有影响,两夹杂物距离越近,应力集中效应越明显,危害越大。
Non-metallic inclusions in the gear have significant influence on the contact fatigue strength of gear. To improve the fatigue performance of the gear, it is essential to understand the mechanism of the influence of the non-metallic inclusions on the fatigue life of the gear. A finite element model of gear pair with inclusions is established, and the Brown-Miller multiaxial fatigue criterion is applied to predict the contact fatigue life. The influence of inclusion size, elasticity modulus, depth and arrangement of inclusions on contact fatigue performance of the gear is investigated. The results show that the size of inclusions increases the stress concentration area, with the increase of elastic modulus difference between inclusion and matrix, the harm of inclusion increases. The damage reaches its maximum when the inclusion located in the depth of about 0.49,b,H,(contact half width depth). The arrangement angle and spacing of two adjacent inclusions also affect the fatigue relief strength, with the decrease of the distance of the two adjacent inclusions, the stress concentration effect is more obvious, the harm will be greater.
风电齿轮夹杂物有限元仿真Brown-Miller准则寿命预测
Wind turbine gearInclusionFinite element analysisBrown-Miller criterionLife prediction
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