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http://yadda.icm.edu.pl:80/baztech/element/bwmeta1.element.baztech-article-BAT1-0024-0027

Czasopismo

Eksploatacja i Niezawodność

Tytuł artykułu

Planning inspections in service of fatigue-sensitive aircraft structure components under crack propagation

Autorzy Nechval, K. N.  Nechval, N. A.  Berzins, G.  Purgailis, M. 
Treść / Zawartość http://www.ein.org.pl/
Warianty tytułu
Języki publikacji EN
Abstrakty
EN For important fatigue-sensitive structures of aircraft whose breakdowns cause serious accidents, it is required to keep their reliability extremely high. In this paper, we discuss inspection strategies for such important structures against fatigue failure. The focus is on the case when there are fatigue-cracks unexpectedly detected in a fl eet of aircraft within a warranty period (prior to the fi rst inspection). The paper examines this case and proposes stochastic models for prediction of fatigue-crack growth to determine appropriate inspections intervals. We also do not assume known parameters of the underlying distributions, and the estimation of that is incorporated into the analysis and decision-making. Numerical example is provided to illustrate the procedure.
Słowa kluczowe
EN aircraft   fatigue crack   inspection interval  
Wydawca Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne
Czasopismo Eksploatacja i Niezawodność
Rocznik 2007
Tom nr 4
Strony 3--8
Opis fizyczny Bibliogr. 7 poz.
Twórcy
autor Nechval, K. N.
autor Nechval, N. A.
autor Berzins, G.
autor Purgailis, M.
  • Applied Mathematics Department Transport and Telecommunication Institute Lomonosov, Street 1, LV-1019 Riga, Latvia, konstan@tsi.lv
Bibliografia
[1] Bogdanoff J.L., Kozin F.: Probabilistic Models of Cumulative Damage. New York: Wiley, 1985.
[2] Jones R., Molent L., Pitt S.: Studies in multi-site damage of fuselage lap joints. J. Theor. Appl. Fract. Mech. vol. 32, 1999, p. 18–100.
[3] Kapur K.C., Lamberson L.R.: Reliability in Engineering Design. New York: Wiley, 1977.
[4] Nechval N.A., Nechval K.N., E.K. Vasermanis E.K.: Statistical models for prediction of the fatigue crack growth in aircraft service. In: Varvani-Farahani A. & Brebbia C.A. (editors), Fatigue Damage of Materials 2003, Southampton, Boston: WIT Press, 2003, p. 435-445.
[5] Paris R., Erdogan F.: A critical analysis of crack propagation laws. Journal of Basic Engineering, vol. 85, 1963, p. 528–534.
[6] Wu W.F., Ni C.C., Liou H.Y.: Random outcome and stochastic analysis of some fatigue crack growth data. Chin. J. Mech. vol. 17, 2001, p. 61–68.
[7] Yang J.N., Manning S.D.: A simple second order approximation for stochastic crack growth analysis. Engng. Fract. Mech. vol. 53, 1996, p. 677–686.
Kolekcja BazTech
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