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http://dx.doi.org/10.12985/ksaa.2011.19.4.058

Estimation of Fatigue Integrity for Small Aircraft Engine Mount Strut  

Lee, Mu-Hyoung (한국항공우주연구원 항공구조팀)
Park, Ill-Kyoung (한국항공우주연구원 항공구조팀)
Kim, Sung-Joon (한국항공우주연구원 항공구조팀)
Ahn, Seok-Min (한국항공우주연구원 항공기술실)
Publication Information
Journal of the Korean Society for Aviation and Aeronautics / v.19, no.4, 2011 , pp. 58-66 More about this Journal
Abstract
The estimation of fatigue integrity is very important for aerospace structures such as engine mount strut. The reason is that the fatigue integrity is essential analysis process to establish the structural stability in aerospace field. Therefore, in this paper, the process of fatigue analysis and test was performed for engine mount strut to prove the structural fatigue integrity. First of all, the fatigue load spectrum is constructed by considering the small aircraft operating condition. Fatigue analysis is done for the cluster near the welding zone which may have F.C.L.(fracture critical location). The fatigue life of engine mount strut was estimated by the Miner's rule which is the damage summation method. Finally, Fatigue test is performed to verify the fatigue integrity. The estimation process of fatigue integrity for engine mount strut of small aircraft may help the design.
Keywords
Small Aircraft; Engine Mount Strut; Fatigue Integrity; F.C.L.;
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