The physical model of intershaft bearing working in off-design conditions

Аuthors

Amelkin A. S.^1*, Kiansky T. N.^2**, Ravikovich Y. A.^1***

1. Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia
2. Scientific and Technical Center (MKB «Granit»), 16, Budyonny pr., Moscow, 105118, Russia

*e-mail: a-a-c@yandex.ru
**e-mail: granit@salut.ru
***e-mail: yurav@mai.ru, yr@mai.ru

Abstract

This article describes the physical model of high pressure turbine intershaft bearing of aviation bypass engine working in off-design conditions. The origin of initial damage of the intershaft bearing, factors that influence the initial damage rate and probable consequences of the defect formation are considered.

Keywords:

intershaft bearing, off-design conditions, initial damage, defect formation, contact loads, radial clearance of the bearing, irregular compression