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1.郑州机械研究所有限公司, 河南 郑州 450001
2.陕西法士特齿轮有限责任公司, 陕西 西安 710119
3.郑机所(郑州)传动科技有限公司, 河南 郑州 450001
李学飞(1995— ),男,河南新乡人,硕士;研究方向为齿轮传动;beautifulxin@vip.qq.com。
刘忠明(1964— ),男,河南浚县人,博士,研究员,博士研究生导师;研究方向为齿轮传动;Zmliu2001@126.com。
纸质出版日期:2023-05-15,
收稿日期:2022-10-27,
修回日期:2023-01-06,
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李学飞,李纪强,陈卓等.时变摩擦因数对齿面接触疲劳寿命的影响研究[J].机械传动,2023,47(05):19-25.
Li Xuefei,Li Jiqiang,Chen Zhuo,et al.Effect of Time-varying Friction Factors on the Contact Fatigue Life of Gears[J].Journal of Mechanical Transmission,2023,47(05):19-25.
李学飞,李纪强,陈卓等.时变摩擦因数对齿面接触疲劳寿命的影响研究[J].机械传动,2023,47(05):19-25. DOI: 10.16578/j.issn.1004.2539.2023.05.004.
Li Xuefei,Li Jiqiang,Chen Zhuo,et al.Effect of Time-varying Friction Factors on the Contact Fatigue Life of Gears[J].Journal of Mechanical Transmission,2023,47(05):19-25. DOI: 10.16578/j.issn.1004.2539.2023.05.004.
齿面摩擦力对齿面接触应力和接触疲劳寿命有着重要的影响。在对齿面接触疲劳寿命预估时,常忽略齿面摩擦力的影响,不利于齿面接触疲劳寿命的准确预估。为了准确预估齿面接触疲劳寿命,根据18CrNiMo7-6齿轮材料的齿面接触疲劳试验数据,基于三参数威布尔分布和名义应力法对
R-S-N
曲线进行拟合,在齿面接触应力的计算中引入时变摩擦因数,分析了时变摩擦因数对齿面接触疲劳寿命的影响,并通过齿面接触疲劳试验进行了验证。结果表明,由于时变摩擦因数的影响,采用传统的名义应力法所估计的齿面接触疲劳极限偏大,且随着应力的增大,摩擦因数对齿面接触疲劳寿命的影响呈减弱趋势。
The tooth surface friction has an important impact on the tooth surface contact stress and the tooth surface contact fatigue life. In the estimation of the contact fatigue life of the tooth surface
the influence of the friction force of the tooth surface is often ignored
which is not conducive to the accurate prediction of the contact fatigue life of the tooth surface. In order to accurately predict the contact fatigue life of the tooth surface
the R-S-N curves are fitted based on the three-parameter Weibull distribution and the nominal stress method according to the tooth surface contact fatigue test data of 18CrNiMo7-6 gear material. By calculating the contact stress on the tooth surface
the time-varying friction factor is introduced
and the influence of the time-varying friction factor on the contact fatigue life of the tooth surface is analyzed. Finally
the tooth surface contact fatigue test is used to verify the validity. The results show that the contact fatigue limit of tooth surface estimated by the traditional nominal stress method is large due to the influence of the time-varying friction factor
and the influence of the friction factor on contact fatigue life of tooth surfaces decreases with the increase of stress.
R-S-N曲线威布尔分布摩擦因数接触疲劳寿命齿轮传动
R-S-N curveWeibull distributionFriction coefficientContact fatigue lifeGear transmission
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