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| 剥蚀对飞机机翼上蒙皮疲劳寿命的影响分析 | |
| 引用本文： | 胡家林,陈跃良,郁大照,徐丽.剥蚀对飞机机翼上蒙皮疲劳寿命的影响分析[J].海军航空工程学院学报,2008,23(3):269-272. |
| 作者姓名： | 胡家林 陈跃良 郁大照 徐丽 |
| 作者单位： | 1. 海军航空工程学院,研究生管理大队,山东,烟台,264001 2. 海军航空工程学院,青岛分院,山东,青岛,266041 3. 海军飞行学院,辽宁,葫芦岛,125001 |
| 摘 要： | 剥蚀是影响老龄飞机机翼结构完整性的重要因素之一.文中基于材料的初始不连续状态(initial discontinuity state, IDS),建立了评估剥蚀对机翼上蒙皮疲劳寿命影响的模型,然后利用AFGROW计算了在以压应力为主导的等幅载荷谱作用下,机翼蒙皮针对不同腐蚀损伤程度时的疲劳寿命.还研究了多腐蚀损伤对机翼蒙皮疲劳寿命的影响,结果表明,相对于单腐蚀损伤,多腐蚀损伤大大降低结构的疲劳寿命,但其对剥蚀程度不敏感.与试验结果比较表明,该模型预测结果精确,方法可靠. |
| 关 键 词： | 剥蚀 疲劳寿命 初始不连续状态 过程区 多腐蚀损伤 机翼 |
Study on the Effects of Exfoliation Corrosion on Fatigue Life of Aircraft Upper Wing Skins |
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| HU Jia-lin,CHEN Yue-liang,YU Da-zhao and XU Li.Study on the Effects of Exfoliation Corrosion on Fatigue Life of Aircraft Upper Wing Skins[J].Journal of Naval Aeronautical Engineering Institute,2008,23(3):269-272. | |
| Authors: | HU Jia-lin CHEN Yue-liang YU Da-zhao and XU Li |
| Institution: | HU Jia-lin1a,CHEN Yue-liang1b,YU Da-zhao1a,XU Li2(1.Naval Aeronautical , Astronautical University a.Graduate Students\' Brigade,Yantai Sh,ong 264001,China,b.Qingdao Branch,Qingdao Sh,ong 266041,2.Naval Aviation Flight Academy,Huludao Liaoning 125001,China) |
| Abstract: | Exfoliation is one of important factors which affect fatigue life of aging aircraft wings.Based on initial discontinuity state(IDS) of material,a preliminary analytical model was built which was developed to evaluate the effect of exfoliation corrosion on the residual fatigue life of upper wing skins.A life prediction was then carried out using constant amplitude compression dominated loading for various exfoliation corrosion levels by AFGROW,and the prediction agreed reasonably with the available test data... |
| Keywords: | exfoliation corrosion fatigue life initial discontinuity state process zone multiple-site corrosion damage aircraft wing |
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