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论文:2013,Vol:31,Issue(1):103-108 |
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引用本文： |
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詹福宇, 杨伟, 王生楠, 赵忠庆. 确定机队WFD平均行为的方法研究[J]. 西北工业大学 |
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Zhan Fuyu, Yang Wei, Wang Shengnan, Zhao Zhongqing. A Method for Determining WFD Average Behavior of Aircraft Fleet[J]. Northwestern polytechnical university |
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| 确定机队WFD平均行为的方法研究 |
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| 詹福宇1,2, 杨伟1,2, 王生楠1, 赵忠庆1 |
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1. 西北工业大学 航空学院, 陕西 西安 710072;
2. 成都飞机设计研究所, 四川 成都 610091 |
| 摘要: |
| 广布疲劳损伤(WFD)是运输类飞机,尤其是老龄飞机,持续适航的重要威胁,WFD评定是保证飞机持续适航的关键措施和必要任务。文章提出一种概率性和确定性理论相结合的方法进行WFD模拟和评定。文中阐述了WFD评定工作的方法和流程,并对如何考虑裂纹间的相互影响进行了说明,最后对针对具体算例进行演示,计算结构的WFD平均行为和监控时期等统计数据,并分析蒙特卡洛模拟的收敛性。该方法模拟了飞机结构发生WFD的过程并得到相关统计数据,为WFD评定提供了有效的工程方法。 |
| 关键词:
飞机
计算仿真
数值方法收敛性
裂纹扩展
疲劳损伤
蒙特卡洛法
统计
连通准则
广布疲劳损伤(WFD)
WFD平均行为
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| A Method for Determining WFD Average Behavior of Aircraft Fleet |
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| Zhan Fuyu1,2, Yang Wei1,2, Wang Shengnan1, Zhao Zhongqing1 |
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1. College of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China;
2. AVIC Chengdu Aircraft Design & Research Institute, Chengdu 610091, China |
| Abstract: |
| Widespread Fatigue Damage(WFD) issue is a major threat to the continuing airworthiness of transportaircraft, particularly the aging aircraft.So WFD evaluation is key measure and necessary task for ensuring the con-tinuing airworthiness.A new method using probabilistic and deterministic theory to simulate and evaluate WFD wasintroduced in this paper.The method and process of WFD evaluation were expounded at first; then how to considercrack interactions was explained.Finally a specific example was given, we obtained the statistical data of WFD av-erage behavior and monitoring period, and analyzed the convergence of the Monte Carlo simulation.Our methodsimulated the WFD process of aircraft structure and got the relevant statistical data, thus providing, we believe, aneffective engineering method for WFD evaluation. |
| Key words:
aircraft
computer simulation
convergence of numerical methods
fatigue crack propagation
fatiguedamage
Monte Carlo methods
statistics;link-up criterion
widespread fatigue damage(WFD)
WFD average behavior
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| 收稿日期: 2012-03-15
修回日期:
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| DOI: |
| 通讯作者:
Email： |
| 作者简介: 詹福宇(1986-)，西北工业大学博士研究生，主要从事飞机减损控制、飞行控制系统及结构疲劳损伤容限研究.
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参考文献: |
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[1] Federal Aviation Administration.Part 25-Airworthiness Standards: Transport Category Airplane,2008
[2] 李亚智,李 强,沈培良.运输类飞机防止广布疲劳损伤的试航要求.航空工程进展,2011,2(4): 373-382Li Yazhi,Li Qiang,Shen Peiliang.An Overview of Airworthiness Requirements for Transport Category Airplanes to PreventWidespread Fatigue Damage.Advances in Aeronautical Science and Engineering,2011,2(4): 373-382 (in Chinese)
[3] Federal Aviation Administration.Aging Aircraft Program: Widespread Fatigue Damage,Final Rule.Federal Register,2010,75(219): 69746-69789
[4] Federal Aviation Administration.Advisory Circular: Establishing and Implementing Limit of Validity to Prevent Widespread Fa-tigue Damage,2011,120-104
[5] Stagg A M.An Investigation of the Scatter in Constant Amplitude Fatigue Test Results of Aluminum Alloys 2024 and 7075.H MStationery off,1970
[6] Moukawsher E J,Grand Jr A F,Neussl M A.Fatigue Life of Panels with Multiple Site Damage.Journal of Aircraft,1996,33(5): 1003-1013
[7] Lincoln J W,Melliere R A.Economic Life Determination for a Military Aircraft.Journal of Aircraft,1999,36(5): 737-742
[8] Swift T.Damage Tolerance Capability.International Journal of Fatigue,1994,16(1): 75-94
[9] Buhler K,Grand Jr A F,Moukawsher E J.Fatigue Analysis of Multiple Site Damage at a Row of Holes in a Wide Panel.FAA/NASA International Symposium on Advanced Structural Integrity Methods for Airframe Durability and Damage Tolerance,1994
[10] Silva L F M,Goncalves J P M,Oliveira F M F,de Castro PMST.Multiple-Site Damage in Riveted Lap-Joints: ExperimentalSimulation and Finite Element Prediction.International Journal of Fatigue,2000,22(4):319-338
[11] 冯振宇,李 凯,杜洪增.老龄飞机广布疲劳损伤的研究进展.中国民航学院学报,2004,22(5): 1-4Feng Zhenyu,Li Kai,Du Hongzeng.Progress of Research on Widespread Fatigue Damage of Aging Aircrafts.Journal of CivilAviation University of China,2004,22(5): 1-4 (in Chinese)
[12] 郑晓玲,张民孚.民机结构耐久与损伤容限设计手册(下册):损伤容限设计与分析.北京: 航空工业出版社,2003Zheng Xiaolin,Zhang Minfu.Structure Durability and Damage Tolerance Design Manual of Civil Aircraft (book 2): DamageTolerance Design and Analysis.Beijing: Aviation Industry Press,2003 (in Chinese)
[13] 王传胜,张建宇,鲍 蕊等.飞机结构多部位损伤发生的可能性分析.北京航空航天大学学报,2006,32(8): 899-902Wang Chuansheng,Zhang Jianyu,Bao Rui,et al.Reliability Analysis on Structure with Multiple Site Damage.Journal of Bei-jing University of Aeronautics and Astronautics,2006,32(8): 899-902 (in Chinese) |
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