Naslov
Fatigue life prognosis of a light aircraft landing gear leg

Autori
Gerhardinger, David ; Domitrović, Anita ; Bazijanac, Ernest

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the Annual Conference of the Prognostics and Health Management Society (PHM 2020) / Saxena, Abhinav - Nashville (TN) : PHM Society, 2020

ISBN
978-1-936263-33-2

Skup
Annual Conference of the Prognostics and Health Management Society (PHM 2020)

Mjesto i datum
Nashville (TN), Sjedinjene Američke Države, 09.11.2020. - 13.11.2020

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Prognostics and Healht Management ; Aircraft ; Landing gear ; Fatigue life ; Low cycle fatigue

Sažetak
Aircraft components are subject to fatigue damage. The prediction of fatigue life has significant influence on maintenance and flight operations. Light aircraft, designed for recreational purposes, have vital components that are subject to a hard time maintenance approach. The focus of this article is on a simple method for predicting fatigue life. The method is applied to a light aircraft’s fixed landing gear leg. The landing gear leg is modelled in a computer aided design environment. The load spectrum is determined, based on a characteristic flight profile. Principal strains are determined with finite element analysis. Fatigue life is calculated with the Coffin-Manson low cycle fatigue relation. The Palmgren-Miner rule is applied, and cumulative damage is determined. The results are compared to actual landing gear leg fatigue damage and the hard time replacement interval which is given in the corresponding maintenance manual.

Izvorni jezik
Engleski

Znanstvena područja
Zrakoplovstvo, raketna i svemirska tehnika

POVEZANOST RADA