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万向钱潮股份公司, 浙江 杭州 310000
牛杰(1987— ),男,河南信阳人,博士,副研究员;主要研究方向为汽车传动系统;niujie@wxj.wxqc.cn。
叶连强(1987— ),男,浙江建德人,硕士,工程师;主要研究方向为汽车传动系统;yelianqiang@wxj.wxqc.cn。
纸质出版日期:2023-05-15,
收稿日期:2022-03-22,
修回日期:2022-08-29,
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牛杰,叶连强,董小忠等.万向节轴承接触强度数值优化方法及试验验证[J].机械传动,2023,47(05):88-97.
Niu Jie,Ye Lianqiang,Dong Xiaozhong,et al.Numerical Optimization Method and Experimental Verification of Contact Strength of U-Joint Bearings[J].Journal of Mechanical Transmission,2023,47(05):88-97.
牛杰,叶连强,董小忠等.万向节轴承接触强度数值优化方法及试验验证[J].机械传动,2023,47(05):88-97. DOI: 10.16578/j.issn.1004.2539.2023.05.015.
Niu Jie,Ye Lianqiang,Dong Xiaozhong,et al.Numerical Optimization Method and Experimental Verification of Contact Strength of U-Joint Bearings[J].Journal of Mechanical Transmission,2023,47(05):88-97. DOI: 10.16578/j.issn.1004.2539.2023.05.015.
针对某重型万向节轴承寿命不足的情况,以接触强度分析为核心,分析了万向节轴承外圈底部支撑对接触强度的影响,认为万向节轴承强度数值计算模型应考虑外圈的支撑作用。通过3种滚针直径下多组凸度与锥度优化对比分析发现,相对于滚针凸度量与凸度长度,轴颈锥度对万向节寿命影响最为敏感;不同设计参数下,轻载与重载对轴承强度的影响趋势不完全相同,应根据实际承载情况进行针对性分析。优化结果表明,滚针轴承接触应力降低18.4%,万向节轴承试验寿命最小值提高28.6%,最大值提高61%,表明了万向节滚针轴承寿命与结构参数的非线性关系,也表明了以万向节接触强度分析为核心的优化模型和分析方案的正确性。研究对带有滚针凸度和轴颈锥度的万向节寿命优化方法有很好的参考意义。
Focusing on the insufficient life of a heavy U-joint bearing and taking the contact strength as the key analysis
the influence of the bottom support of the case of the U-joint bearing on the contact strength is analyzed. It is believed that the support effect of the case should be considered in numerical calculation model of the U-joint bearing strength. Through the comparative analysis of multi-group crown and taper optimization under three kinds of needle diameters
it is found that the journal taper is most sensitive to the life of U-joint comparing to the needle crown height and needle crown length. It is also found that under different design parameters
the influence tendency of light load and heavy load on bearing strength is not exactly identical. Hence
it should be analyzed according to the actual load situation. The optimization results show that the contact stress of the needle roller bearing is reduced by 18.4%
the minimum test life of the U-joint bearing is increased by 28.6%
and the maximum test life is increased by 61%
indicating the nonlinear relationship between the life of the U-joint needle roller bearing and the structural parameters
and also show the correctness of the optimization model and analysis scheme of U-joint contact strength. It is significant in providing reference for the life optimization method of U-joint with needle roller crowns and journal tapers.
万向节轴承接触强度有限元法寿命
U-joint bearingContact strengthFinite element methodLife
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