Abstract
Failure of the middle bearing in an aircraft rotor engine was reported. Tip-timing and tip-clearance analyses were carried out on a compressor rotor blade in the seventh stage above the middle bearing. The experimental analyses concerned 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 free vibration of the seventh stage blade was conducted to explain the experimental ones. Proposed in this paper is a method to prevent middle bearing failure.
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Acknowledgments
This research has been financed from Polish Government funds for the years 2012–2014 as a development project PBS1/B4/5/2012. All numerical calculations were made at the Academic Computer Centre TASK (Gdansk, Poland).
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Rzadkowski, R., Rokicki, E., Szczepanik, R., Żurek, J. (2015). Non-intrusive Diagnostic of Middle Bearing of Aircraft Engine. In: Amadi-Echendu, J., Hoohlo, C., Mathew, J. (eds) 9th WCEAM Research Papers. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-15536-4_17
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DOI: https://doi.org/10.1007/978-3-319-15536-4_17
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