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A direct-drive wave energy converter with contactless force transmission system

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dc.contributor Wallace, Alan K.
dc.contributor von Jouanne, Annette R.
dc.contributor Weisshaar, Andreas
dc.contributor Mayaram, Kartikeya
dc.contributor Nibler, Joseph
dc.date 2005-11-07T16:34:21Z
dc.date 2005-11-07T16:34:21Z
dc.date 2005-10-19
dc.date 2005-11-07T16:34:21Z
dc.date.accessioned 2013-10-16T07:28:14Z
dc.date.available 2013-10-16T07:28:14Z
dc.date.issued 2013-10-16
dc.identifier http://hdl.handle.net/1957/548
dc.identifier.uri http://koha.mediu.edu.my:8181/xmlui/handle/1957/548
dc.description Graduation date: 2006
dc.description Commonly proposed ocean wave energy converters (OWEC) use inefficient and maintenance demanding intermediate hydraulic and pneumatic systems. We propose a novel rotary direct-drive OWEC that eliminates these intermediate stages. The new device employs a contactless force transmission system (CFTS) comprising a “piston” and a “cylinder” and a ball screw to spin a conventional rotary generator. We present an analytical model of the OWEC and also propose a numerical technique that performs a coupled fluid-structure interaction simulation of the wave energy device in a 3-D numerical wave flume using a computational fluids dynamics (CFD) code. In previous investigations, the motion of floating bodies was prescribed rather than determined. The current method represents a significant advancement in that it determines the motion of the buoy from the dynamic solution of the fluid flow problem and the dynamic buoy motion problem. The technique was extended to assess the performance of two neighboring buoys and their interference effects.
dc.language en_US
dc.subject ocean wave energy
dc.subject direct-drive
dc.subject fluid-structure interaction
dc.title A direct-drive wave energy converter with contactless force transmission system
dc.type Thesis

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