QE2 FROM TURBINE TO DIESEL--CONSEQUENCES FOR NOISE AND VIBRATION

When the Queen Elizabeth 2 was to be converted from a turbine to a diesel-engine propelled ship it was decided that the ship should have the same excellent noise and vibration properties as it had had before the conversion. Post-conversion measurements show that the vibration level is, in fact, very low, even showing a slight improvement as compared with levels before re-engining. Noise levels in the foreship are at pre-conversion levels, but those amidship have decreased on all decks except the lowest passenger deck, where the level is as before the conversion. An increase in the noise levels has been recorded in the aft ship, and is attributed to the cavitating tip vortex behind the propeller. A new propeller design has been developed and tested and results indicate that both noise and vibration in the aft ship will be considerably reduced to well below pre-conversion levels. Despite its having the speed and power that make it the world's fastest cruise ship, the Queen Elizabeth 2 is also one of the most silent of today's passenger ships.

Media Info

  • Pagination: 8p.+discuss.

Subject/Index Terms

Filing Info

  • Accession Number: 00657970
  • Record Type: Publication
  • Source Agency: Maritime Technical Information Facility
  • Files: TRIS
  • Created Date: Jul 21 1994 12:00AM