| 航空齿轮疲劳强度的可靠性 |
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| 引用本文： | 谈嘉祯,边新孝,王小群.航空齿轮疲劳强度的可靠性[J].北京科技大学学报(英文版),1995(1). |
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| 作者姓名： | 谈嘉祯 边新孝 王小群 |
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| 作者单位： | 北京科技大学机械工程学院 |
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| 摘 要： | 采用成组试验法，对４０副航空用１６ＮＣＤ１３钢渗碳淬火齿轮进行齿面疲劳强度试验研究，分别在４个应力水平上取得了齿面出现点蚀时和点蚀达到失效判据时的疲劳寿命样本。经统计分析，判明了疲劳寿命的分布规律并对分布参数进行了估计。在此基础上拟合出了置信度为９５％、可靠度为９９．９９％的齿面接触疲劳极限应力值，为这种齿轮的可靠性设计和寿命预测提供了基础数据。
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| 关 键 词： | 航空齿轮，齿面接触疲劳强度，R－S－N曲线 |
RELIABILITY OF AEROCRAFT GEAR FATIGUE STRENGTH |
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| TAN JIAZHEN,BIAN XINXIAO,WANG XIAOQUN.RELIABILITY OF AEROCRAFT GEAR FATIGUE STRENGTH[J].Journal of University of Science and Technology Beijing,1995(1). |
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| Authors: | TAN JIAZHEN BIAN XINXIAO WANG XIAOQUN |
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| Abstract: | With the method of group test, fourty pairs of carburization-quenching gears made from 16NCD13 steel for aerocraft were tested to research the contacting fatigue strength on tooth flank. As a result, the samples of fatigue life at the moments when the pitting appears and reaches failure criterion were obtained at four stressing levels respectively. The distribution rule of fatigue life were distinguished, and the distribution parameters were estimated by statistical analysis. Based on that, the R-S-N curves with confidence 95% of contacting fatigue on gear tooth flank were evaluated. Therefore, the basic data were provided for the reliability design of the gears and prediction of their life. |
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| Keywords: | aerocraft gear contacting fatigue strength of tooth flank R-S-N curve |
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