| 基于强度退化的齿轮可靠性计算模型研究及应用 |
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| 引用本文： | 屈衍静,杨深然,史妍妍,刘海年.基于强度退化的齿轮可靠性计算模型研究及应用[J].航空发动机,2017,43(5):35-38. |
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| 作者姓名： | 屈衍静 杨深然 史妍妍 刘海年 |
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| 作者单位： | 1. 中国航发沈阳发动机研究所,沈阳,110015;2. 东北煤田地质局一二八勘探队,沈阳,110122 |
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| 基金项目： | 航空动力基础研究项目资助 |
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| 摘 要： | 为了研究强度退化对齿轮可靠性的影响,针对一般工作环境下具有多种失效模式的齿轮,通过引入条件概率,考虑零件失效相关性和材料性能退化因素,利用动态应力-强度干涉模型建立基于强度退化的齿轮可靠性的计算模型。以某型齿轮可靠度计算为例,其计算结果表明:在考虑材料强度退化时,齿轮的可靠度随工作时间的增加不断降低,验证了该计算模型的准确性。
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| 关 键 词： | 齿轮 失效模式 应力-强度干涉模型 强度退化 可靠性 航空发动机 |
Research and Application on Reliability Calculation Model of a Gear Based on Strength Reduction |
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| Authors: | QU Yan-jing YANG Shen-rang SHI Yan-yan LIU Hai-nian |
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| Institution: | 1. AECC Shenyang Engine Reasearch Institution, Shenyang 110015, China;
2. No.128 Exploration Team, Northeast China Bureau of Coal Geological Exploration, Shenyang 110122, China |
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| Abstract: | In order to study the influence of strength reduction on the reliability of gears, a gear with variety of failure modes in
conventional environment was introduced through the conditional probability, considering the part failure correlation and material
performance degradation factors. A reliability calculation model of gear was developed using the dynamic stress-strength interference model.
Taking the reliability calculation of a gear as an example, he calculation results show that the reliability of gear is decreased gradually with
the extension of working time, and the accuracy of the model is verified. |
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| Keywords: | gear failure mode stress-strength interference model strength reduction reliability aeroengine |
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