Authors: Lea M.; Thompson D.; Van Blarcom B.; Eaton J.; Friesch J.; Richards J.

Source: Journal of Ship Production, Volume 19, Number 2, 1 May 2003 , pp. 121-130(10)

Publisher: Society of Naval Architects and Marine Engineers (SNAME)

Abstract:

Podded propulsion is gaining more widespread use in the marine industry and is prevalent in newer cruise ships in particular. This propulsion system can provide many advantages to the ship owner that include increased propulsion efficiency, arrangement flexibility, payload, and harbor maneuverability. A new, unique podded propulsor concept is being developed that allows optimization of each element of the system. The concept comprises a ducted, multiple-blade row propulsor with a permanent magnet, radial field motor rotor mounted on the tips of the propulsor rotor blades, and the motor stator mounted within the duct of the propulsor. This concept, designated a commercial rim-driven propulsor pod (CRDP), when compared to a conventional hub-driven pod (HDP), offers improved performance in a number of areas, including equal or improved efficiency, cavitation, and hull unsteady pressures. The combination of these CRDP performance parameters allows the ship designer much greater flexibility to provide improved ship performance as compared to that of an HDP. A CRDP is being developed to power a panamax-size cruise vessel. The paper addresses the hydrodynamic performance of that CRDP design demonstrated at 1/25th scale as tested at the Hamburg Ship Model Basin, Hamburg Germany (HSVA).

Document Type: Research article

Publication date: 2003-05-01

More about this publication?

• The Journal of Ship Production publishes original and timely technical papers addressing problems of shipyard techniques and production of merchant and naval ships appear in this quarterly publication. Since its inception, the Journal has been a forum for peer-reviewed, professionally edited papers from academic and industry sources. As such, it has influenced the worldwide development of ship production engineering as a fully qualified professional discipline. Each issue contains a well-rounded selection of technical papers relevant to ship professionals, including written discussions and author's closures.
  
  From Volume 26 onwards this journal is published as Journal of Ship Production and Design
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