Performance optimization of marine propellers
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참고문헌
초록
Recently a Wide Chord Tip (WCT) propeller has been developed and applied to a commercial ship by STX Offshore & Shipbuilding. It is reported that the WCT propeller significantly reduces pressure fluctuations and also ship’s noise and vibration. On the sea trial, vibration magnitude in the accommodations at NCR was measured at 0.9mm/sec which is only 10% of international allowable magnitude of vibration (9mm/sec). In this paper, a design method for increasing performance of the marine propellers including the WCT propeller is suggested. It is described to maximize the performance of the propeller by adjusting expanded areas of the propeller blade. Results show that efficiency can be increased up to over 2% through the suggested design method.
Abstract
Recently a Wide Chord Tip (WCT) propeller has been developed and applied to a commercial ship by STX Offshore & Shipbuilding. It is reported that the WCT propeller significantly reduces pressure fluctuations and also ship’s noise and vibration. On the sea trial, vibration magnitude in the accommodations at NCR was measured at 0.9mm/sec which is only 10% of international allowable magnitude of vibration (9mm/sec). In this paper, a design method for increasing performance of the marine propellers including the WCT propeller is suggested. It is described to maximize the performance of the propeller by adjusting expanded areas of the propeller blade. Results show that efficiency can be increased up to over 2% through the suggested design method.
참고문헌 (6)
- Choi,Y.D., "Application of Wide-Chord Tip and Spiral Skew to the Ship Propeller", 박사, pp.2009
- Carlton,J.S., "Marine Propellers and Propulsion" (2007), Published by Elsevier Ltd
- Kerwin, J.E, "Prediction of steady and unsteady marine propeller performance by numericallifting surface theory", Soc. of Naval Arch. & Marine Eng., Trans, 86, pp.218~256 (1978), SNAME
- Lee,C.S., "Prediction of steady and unsteady performance of marine propellers with or without cavitation by numerical lifting surface theory", 박사, pp.1979
- Lee,C.S., "Prediction of the transient cavitation on marine propellers by numerical lifting surface theory", 13th Symp. on Naval Hydrodynamics, Tokyo, Office of Naval Research, pp.46~64 (1980)
- Lee, C.S, "Interaction between a Propeller and the Stern Shear Flow", Korea-Japan Joint Workshop on Hydrodynamics in Ship Design, pp.16~29 (1991)