Method and apparatus for reducing vibration

Details Method and apparatus for reducing vibration Method and apparatus for reducing vibration

B - Operations, Transporting

63

H

115/25

B63H 3/00 (2006.01) B63H 1/28 (2006.01)

Patent

CA 1234017

- 11 - ABSTRACT OF THE DISCLOSURE Vibrations induced by a propeller rotating in a medium to drive a body supporting the propeller through the medium can be reduced by generating a timing signal synchronised with the rotation of the propeller and using this timing signal to reduce the perturbations in pro- peller performance by varying the pitch of at least one blade of the propeller during each rotation of the latter, and/or by varying the pressure in at least one localised region of the medium through which the propeller turns.

469030

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