Role of MPСM structures and their effect on vibration fatigue characteristics of GTE constructive components

Postnova M.V., Postnov V.I.
UDC
669.018.95
DOI
10.18577/2307-6046-2017-0-1-7-7
Article PDF (Russian) (734.03 KB)
How to cite
Postnova M.V., Postnov V.I. Role of MPСM structures and their effect on vibration fatigue characteristics of GTE constructive components // Proceedings of VIAM. 2017. No. 1. DOI: 10.18577/2307-6046-2017-0-1-7-7. URL: https://test.viam.ru/en/journal/2017/1/7
Keywords
reverser, fatigue failure, Alor D16/41, skin of engine nacelle.
Abstract

During operation of a reverser of D18T engine 32 cases of damaged skin from D16 alloy of RU-18T reverser mobile case are revealed. In order to increase in service life of this unit it has been decided to use metal-polymeric material Alor D16/41 as a skin material of internal path (crown type). For commercial introduction of metal-polymeric material Alor D16/41 into a structure of airplane manufacturing research of its properties has been conducted. The researches have shown that forming ability of layered MPCM depends on the fiber reinforcement lay-out relative to the direction of deformation Besides all known technological processes of parts forming have been developed. Since units of the reverser are subjected to vibroacoustic impact in the process of operation researches on their sound insulation have been conducted. Application of Alor D16/41 as a skin material in engine nacelle allowed reducing in weight of the structure by 10% and considerable improving of its vibration fatigue p

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