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Implementation of Manoeuvre Loads for Fatigue Life Assessment of the Front Frame in the RM12 Engine
2015 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

In this thesis a new methodology for evaluating the impact from manoeuvre loads, in the life assessment of the front frame in the RM12 engine, has been developed. Analyses with real mission data were performed, using both the recently developed FE-model of the entire engine together with an independent FE-model of the front frame, in order to determine the damage supplement in the component due to manoeuvring of the aircraft. These indications will facilitate the engineers at GKN Aerospace in future life assessments, not only for the front frame but all static components in the engine. It was found that including the loads, due to manoeuvring of the aircraft, resulted in over twice the damage in the front frame when compared to the damage due to the axial loading induced by differences between the atmospheric pressure and the air pressure within the engine. However these results were not achieved at such nodal locations having the highest stress levels and therefore the manoeuvre loads might have even more impact on the damage of the analysed component.

Place, publisher, year, edition, pages
2015. , 81 p.
Keyword [en]
Keyword [sv]
URN: urn:nbn:se:ltu:diva-53245Local ID: a47c0131-e737-4039-b1a7-3ce065bb7698OAI: diva2:1026619
Subject / course
Student thesis, at least 30 credits
Educational program
Space Engineering, master's level
Validerat; 20150701 (global_studentproject_submitter)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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