Improving the Accuracy of Fatigue Damage Calculations for Archived Data

• Autorzy: Leski Andrzej

Identyfikatory

DOI

10.2478/fas-2019-0011

• Języki publikacji: EN

Abstrakty

EN

Historical operational usage data give a ground for fatigue damage estimation. Quality of sensors and recorders two or more decades ago were lower then modern one. Lack of resolution in nz-level measurement and recording leads to some errors in fatigue damage calculations. In this paper author propose a method to improve the accuracy of fatigue damage calculations for archived data. The method takes advantage of typical distribution of accumulated cycles for aircrafts. Small correction in representative nz value taken in calculations can reduce the error in fatigue damage assessment.

Słowa kluczowe

EN

fatigue damage; nz; aircrafts; recorders; calculation; cycles; error

• Wydawca: Wydawnictwa Naukowe Sieci Badawczej Łukasiewicz - Instytutu Lotnictwa
• Czasopismo: Fatigue of Aircraft Structures
• Rocznik: 2019
• Tom: Iss. 11
• Strony: 113--120
• Opis fizyczny: Bibliogr. 7 poz., rys., tab., wykr., wzory

Twórcy

autor

Leski Andrzej

• Łukasiewicz Research Network - Institute of Aviation, Al. Krakowska 110/114, 02-256, Warsaw

Bibliografia

• [1] Wanhill, R. J. H., Molent, L., Barter, S. A. and Amsterdam, E. (2015). Milestone Case Histories in Aircraft Structural Integrity. NLR-TP-2015-193 National Aerospace Laboratory NLR, Nederland.
• [2] AGARD Lecture Series 206. Aging Combat Aircraft Fleets – Long Term Applications. 1996
• [3] Barszcz, P., Borgon, J., Leski, A. and Niezgoda, T. (2002). Exemplary Applications of the Reverse Engineering Method In the Process Of Extending Service Lives Of Aircraft In Operation in the Polish Air Forces. International Design Conference – DESIGN 2002 Dubrovnik, May 14-17, pp. 605-610.
• [4] Klimaszewski, S., Kurdelski, M. and Leski, A. (2007). Aircraft structural integrity program as an practical use of fracture mechanics. Zeszyty Naukowe Politechniki Swietokrzyskiej. Nauki Techniczne. 4, pp. 58-59.
• [5] Engineering Science Data Unit ESDU Data Item No. E.07.01. Endurance of aluminium alloys.
• [6] Leski, A., Lisiecki, J. and Reymer, P. (2011). Monitorowanie obciazen eksploatacyjnych samolotow MiG-29 i MiG-29UB na podstawie analizy wartosci przeciazen pionowych (wspolczynnikow obciazenia) nz na koniec IV kwartału 2011. RAPORT Nr 141/31/2011, ITWL. (in Polish)
• [7] Damage Severity of Monitored Fatigue Load Spectra. National Aerospace Laboratory Netherlands. NLR TP 92009 U. January 1992.

Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).