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Volume 34 Issue 01
Jan.  2008
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Journal of Beijing University of Aeronautics and Astronautics  > 2008  >  34(01): 84-87.
Wang Lei, Liu Wenting. Technology on evaluating damage and reliability of aircraft structure fatigue critical parts[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(01): 84-87. (in Chinese)
Citation: Wang Lei, Liu Wenting. Technology on evaluating damage and reliability of aircraft structure fatigue critical parts[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(01): 84-87. (in Chinese)
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Technology on evaluating damage and reliability of aircraft structure fatigue critical parts

  • School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • Received Date: 25 Jan 2007
  • Publish Date: 31 Jan 2008
    Abstract
  • Analysis was started with character of fatigue failure and damage evolution of structure. The structure reliability analysis model which expressed in fatigue damage of critical parts was given. The damage and reliability evaluation technique and corresponding parameter index of fatigue critical parts of in service aircraft were presented by basing on above model. The method based on integrated data of full-scale fatigue test on aircraft structure at room environment and flight parameters of every aircraft recorded in service. The method can carry out timely calculating structure damage state and reliability using flight parameters of every aircraft, and can satisfy with requirement of fatigue damage monitoring technique of aircraft in service. Finally the engineering demonstration based on usage of certain type aircraft was given. The method can be applied to timely evaluating structure damage and reliability of certain type aircraft, as also can provide important service information of every aircraft structure in service for the user. Then it is possible to allocating and using every aircraft in service reasonable with the precondition of ensuring aircraft structure safely.

     

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    • References(1)
  • [1] Kececioglu, Dimitri B, Chester, et al. Sequential cumulative fatigue reliability Proceedings 1974 Reliability and Maintainability Symposium. Los Angeles: Institute of Electrical and Electronics Engineers, 1974:533-539 [2] Wirsching P H. Statistical summaries of fatigue data for design purposes . NASA CR-3967, 1983 [3] 张福泽.疲劳分散系数中标准差的研究[J].航空学报,1986,7(增刊1):17-27 Zhang Fuze. Reseach of standard deviation on fatigue scatter factor[J]. Acta Aeronautica et Astronautica Sinica, 1986,7(Sup 1):17-27(in Chinese) [4] 安俊平.疲劳累计损伤统计理论及其应用 .北京:北京航空航天大学航空科学与工程学院,1992 An Junping. Statistical theory of fatigue cumulative damage and its application .Beijing: School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, 1992(in Chinese) [5] Molent L.Proposed specifications for an unified strain and flight parameter based aircraft fatigue usage monitoring system Lincoln J W,Waggoner G K.1998 USAF ASIP Conference. San Antonio:Air Logistics Center Aircraft Directorate,1998:1-19
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