Authors: Posavljak, Strain
Maksimović, Stevan
Boljanović, Slobodanka 
Affiliations: Mathematical Institute of the Serbian Academy of Sciences and Arts 
Title: Fatigue life defining of aircraft engine disks
Journal: Proceedings of the 4th International Scientific Conference on Defensive Technologies OTEH 2011
First page: 79
Last page: 84
Conference: 4th International Scientific Conference on Defensive Technologies OTEH 2011, Belgrade, Serbia, October 6-7, 2011
Issue Date: 2011
Rank: M33
ISBN: 978-86-81123-50-8
Aircraft engine disks, dominantly loaded by centrifugal forces of blades and own centrifugal forces, are subject of this paper. One real disk was observed as their representative. Its fatigue life was defined in equivalent cycles. “Consumption” of equivalent cycles of this disk, during engine ground controls and flights described by blocks of rotation frequency, was analyzed. Special attention is devoted to increased “consumption” of equivalent cycles in the case of rotation frequency above 100 %. It was shown that fatigue life defining of aircraft engine disks, in equivalent cycles, is better than defining in flight hours.
Publisher: Military Technical Institute, Belgrade

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