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PROPELLER BLADE CAVITATION AS A SOURCE OF VIBRATIONS--FULL SCALE EXPERIENCES

A. R. Sørensen, Søren Juhl Andersen, D Karlsen, T Sontvedt, K Holden

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Abstract

Equipment and methods for observation of propeller cavitation on board different types of ships in various loading conditions and water are described. Recorded pressure impulses on the hull induced by the propeller are presented. In this paper necessary equipment and methods developed for observations and characterizing one of the most important sources of vibrations on board ships are presented. Development of equipment and investigations on board the ships have been carried out in close cooperation with the AKER GROUP and the SHIP RESEARCH INSTITUTE OF NORWAY. Full scale investigations applying the equipment will continue for the next 2 years, so as to obtain more sufficient data as basis for correlations of model cavitation tests and theoretical methods of approach.

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What this paper is about

Equipment and methods for observation of propeller cavitation on board different types of ships in various loading conditions and water are described. Recorded pressure impulses on the hull induced by the propeller are presented. In this paper necessary equipment and methods developed for observations and characterizing one of the most important sources of vibrations on board ships are presented. Development of equipment and investigations on board the ships have been carried out in close cooperation with the AKER GROUP and the SHIP RESEARCH INSTITUTE OF NORWAY. Full scale investigations applying the equipment will continue for the next 2 years, so as to obtain more sufficient data as basis for correlations of model cavitation tests and theoretical methods of approach.

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Available abstract

Equipment and methods for observation of propeller cavitation on board different types of ships in various loading conditions and water are described. Recorded pressure impulses on the hull induced by the propeller are presented. In this paper necessary equipment and methods developed for observations and characterizing one of the most important sources of vibrations on board ships are presented. Development of equipment and investigations on board the ships have been carried out in close cooperation with the AKER GROUP and the SHIP RESEARCH INSTITUTE OF NORWAY. Full scale investigations applying the equipment will continue for the next 2 years, so as to obtain more sufficient data as basis for correlations of model cavitation tests and theoretical methods of approach.

Key concepts: Propeller, Hull, Cavitation, Marine engineering, Vibration, On board, Full scale, Engineering

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