| 基于损伤检测的腐蚀疲劳寿命预测概率模型 |
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| 引用本文： | 苏维国,穆志韬,刘涛,张宁平. 基于损伤检测的腐蚀疲劳寿命预测概率模型[J]. 装备环境工程, 2009, 6(5): 33-38 |
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| 作者姓名： | 苏维国 穆志韬 刘涛 张宁平 |
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| 作者单位： | 海军航空工程学院青岛分院,山东,青岛,266041;海军航空工程学院青岛分院,山东,青岛,266041;海军航空工程学院青岛分院,山东,青岛,266041;海军航空工程学院青岛分院,山东,青岛,266041 |
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| 摘 要： | 建立了飞机结构腐蚀疲劳寿命预测的4阶段概率模型,结合腐蚀疲劳损伤检测结果,通过检测的灵敏度和准确度2个随机变量来描述检测技术的可靠性;建立了检测后的修正腐蚀疲劳寿命预测概率模型,通过对比分析修正前后的腐蚀疲劳寿命分布,得出腐蚀损伤尺寸的检测结果。对腐蚀疲劳寿命的评估影响很大,并且检测技术越可靠,寿命评估越准确。
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| 关 键 词： | 腐蚀疲劳寿命 腐蚀疲劳损伤检测 可靠性 概率模型 |
Probability Model for Prediction of Corrosion Fatigue Life Based on Damage Inspection |
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| SU Wei-guo,MU Zhi-tao,LIU Tao,ZHANG Ning-ping. Probability Model for Prediction of Corrosion Fatigue Life Based on Damage Inspection[J]. Equipment Environmental Engineering, 2009, 6(5): 33-38 |
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| Authors: | SU Wei-guo MU Zhi-tao LIU Tao ZHANG Ning-ping |
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| Affiliation: | (Qingdao Branch of Naval Aeronautical Engineering Academy, Qingdao 266041, China) |
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| Abstract: | A four stages probability model for prediction of aircraft structure corrosion fatigue life was established. The reliability of the detection technique was quantified through a probability ciescription of its sensibility and accuracy. An updated prediction model was developed after in-service inspection of corrosion fatigue damage. The result showed that the size of damage has great influence on prediction of corrosion fatigue life; the more reliable the detection technology, the more accurate the assessment of corrosion fatigue life. |
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| Keywords: | corrosion fatigue life inspection corrosion fatigue damage reliability probability model |
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