Gas-turbine engine gear oil pump vibration diagnostics

2002, vol. 9, no. 1, pp. 59-65

Propulsion and Power Plants

Аuthors

Zvonarev S. L.^*, Ivanov A. V.

Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia

*e-mail: zvonarev@umail.ru

Abstract

A mathematical model is proposed for vibration diagnostics of friction bearing wear-out degree. The bearing supports driving and driven gears of gear-type oil-pump used in gas-turbine engine. Diagnostic indicators are extracted for some specific cases. Results of numerical analysis are discussed.

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