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Diagnostics of marine propeller shafts

Bielawski P.

Journal of Polish CIMAC

2011

Vol. 6, no 2

31-40

This author provides a description of the construction and function of a ship’s propeller shaft, and states that the methods and resources for diagnosing a marine propeller shaft are insufficient. It is underlined that the diagnostics of machines mounted in plain bearings successfully makes use of measurements of the shaft journal centre trajectory. An attempt has been made to transfer this kind of diagnostics to the field of marine propeller shafts. A physical model of a propeller shaft was built in a test stand ROTOR KIT OIL WHIRL/WHIP OPTION made by Bently Nevada. The trajectory of a shaft journal centre and its maximum radius-vector were examined. The need to develop this method of diagnosing propeller shafts has been confirmed.