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TIP-Timing Diagnostics of Middle Bearing Aircraft Engine

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TIP-Timing Diagnostics of Middle Bearing Aircraft Engine

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Title: TIP-Timing Diagnostics of Middle Bearing Aircraft Engine
Author: Szczepanik, Ryszard; Rokicki, Edward; Jankowski, Antoni; Rzadkowski, Romuald
Description: The reported problem is the failure of the middle bearing in an aircraft ro-tor engine. Tip-timing and tip-clearance, variance analyses and RMS are carried out on a compressor rotor blade in the seventh stage above the middle bearing. The experimental anal-yses 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 vibra-tion are conducted to explain the ex-perimental results. This appears to be an effective method of predicting mid-dle bearing failure. The blade vibra-tion variance and RMS increases when there is bearing failure.
Bookmark: http://hdl.handle.net/2374.UC/745900
Date: 2015

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ISABE2015-20153 Szczepanik et al. Final.pdf 1.483Mb PDF Thumbnail

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Attribution-NonCommercial-NoDerivs 3.0 United States Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 United States

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