| 螺桨断裂可靠性及损伤容限分析与评定 |
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| 引用本文： | 费斌军,高镇同.螺桨断裂可靠性及损伤容限分析与评定[J].航空学报,1994,15(3):318-323. |
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| 作者姓名： | 费斌军 高镇同 |
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| 作者单位： | 北京航空航天大学固体力学所,北京,100083 |
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| 摘 要： | 针对Ｙ７－２００５螺桨的载荷及使用环境的特点,建立了含裂纹构件的长寿命可靠性计算的二维断裂干涉模型,给出了无限寿命下的含裂纹结构的断裂可靠性计算方法。并计算了在不同初始裂纹尺寸下螺旋奖的可靠度。同时,对螺桨进行了损伤容限分析,建立了适应于高频小载荷下利用载荷的二维概率分布函数的裂纹扩展寿命干涉积分公式。给出了在不同初始裂纹尺寸下的裂纹扩展寿命及检修周期。
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| 关 键 词： | 可靠性 螺旋桨 损伤程度评估 |
| 收稿时间： | 1992-05-04 |
| 修稿时间： | 1993-03-05 |
THE RELIABILITY AND DAMAGE TOLERANCE ANALYSIS OF AIRCRAFT PROPELLER |
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| Fei Binjun, Gao Zhengtong.THE RELIABILITY AND DAMAGE TOLERANCE ANALYSIS OF AIRCRAFT PROPELLER[J].Acta Aeronautica et Astronautica Sinica,1994,15(3):318-323. |
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| Authors: | Fei Binjun Gao Zhengtong |
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| Institution: | Research Center of Solid Mechanics,Beijing University of Aeronautics and Astronautics,Beijing,100083 |
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| Abstract: | The stress-strength interference model can be used for the structure without fatigue crack.It isn't available for the structure that is often damaged slightly such as propeller.A two-dimensional interference reliability model using the two-dimensional fatigue load distribu- tion and the distribution of fatigue crack growth threshold for the reliability of the structure with fatigue crack is established in this paper.The reliability of the propeller of Y7-200B with differ- ent crack sizes is listed.A damage tolerance analysis using aninterference integral formula with the two-dimensional load distribution is carried out for the propeller and the fatigue crack inspection period with given rcliability is given. |
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| Keywords: | reliability propellers damage assessment |
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