NDLI: Analysis of Middle Bearing Failure in Rotor Jet Engine Using Tip-Timing and Tip-Clearance Technique

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Rokicki, Edward Majewski, Paweł Rzadkowski, Romuald Szczepanik, Ryszard Spychała, Jarosław Drewczyński, Marcin
Copyright Year	2014
Abstract	The reported problem is the failure of the middle bearing in an aircraft rotor engine. Tip-timing and tip-clearance and variance analyses are carried out on a compressor rotor blade in the seventh stage above the middle bearing. The experimental analyses concern both an aircraft engine with a middle bearing in good working order and an engine with a damaged middle bearing. A numerical analysis of the seventh stage blade free vibration are conducted to explain the experimental results. This appears to be an effective method of predicting middle bearing failure. The blade vibration variance increases when there is bearing failure.
Sponsorship	International Gas Turbine Institute
File Format	PDF
ISBN	9780791845769
DOI	10.1115/GT2014-25722
Volume Number	Volume 7A: Structures and Dynamics
Conference Proceedings	ASME Turbo Expo 2014: Turbine Technical Conference and Exposition
Language	English
Publisher Date	2014-06-16
Publisher Place	Düsseldorf, Germany
Access Restriction	Subscribed
Subject Keyword	Vibration Blades Bearings Rotors Clearances (engineering) Compressors Aircraft engines Jet engines Engines Numerical analysis Free vibrations Experimental analysis Aircraft Failure
Content Type	Text
Resource Type	Article

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Analysis of Middle Bearing Failure in Rotor Jet Engine Using Tip-Timing and Tip-Clearance Technique