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Acoustic emission technology for detection of shaft-to-seal rubbing on power generation turbines; a qualitative verification

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This brief report presents the most realistic authentication of the applicability of Acoustic Emission (AE) technology for the detection of rotor-to-stator rubbing in power generation steam turbines. Rubbing was induced on an operational 200 MW steam turbine by pressing a brass-tipped rubbing stick against an exposed region of the shaft. AE and vibration measurements were recorded throughout the tests and it was noted that AE provided an immediate response to the application of the rubbing stick.
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Document Type: Research Article

Affiliations: 1School of Engineering, Cranfield University, Cranfield, Beds, MK43 0AL, UK.

Publication date: December 1, 2006

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