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Analysis of a pitching-and-surging wave-energy converter that reacts against an internal mass, when operating in regular sinusoidal waves.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Analysis of a pitching-and-surging wave-energy converter that reacts against an internal mass, when operating in regular sinusoidal waves. / Widden, M. B.; French, M. J.; Aggidis, George A.
In: Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment, Vol. 222, No. Number, 2008, p. 153-161.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Widden, MB, French, MJ & Aggidis, GA 2008, 'Analysis of a pitching-and-surging wave-energy converter that reacts against an internal mass, when operating in regular sinusoidal waves.', Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment, vol. 222, no. Number, pp. 153-161. https://doi.org/10.1243/14750902JEME47

APA

Widden, M. B., French, M. J., & Aggidis, G. A. (2008). Analysis of a pitching-and-surging wave-energy converter that reacts against an internal mass, when operating in regular sinusoidal waves. Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment, 222(Number), 153-161. https://doi.org/10.1243/14750902JEME47

Vancouver

Widden MB, French MJ, Aggidis GA. Analysis of a pitching-and-surging wave-energy converter that reacts against an internal mass, when operating in regular sinusoidal waves. Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment. 2008;222(Number):153-161. doi: 10.1243/14750902JEME47

Author

Widden, M. B. ; French, M. J. ; Aggidis, George A. / Analysis of a pitching-and-surging wave-energy converter that reacts against an internal mass, when operating in regular sinusoidal waves. In: Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment. 2008 ; Vol. 222, No. Number. pp. 153-161.

Bibtex

@article{b82e92d34b674c2480818e223b99471c,
title = "Analysis of a pitching-and-surging wave-energy converter that reacts against an internal mass, when operating in regular sinusoidal waves.",
abstract = "The paper examines the behaviour of a pitching-and-surging wave-energy converter driven by unidirectional waves that exert harmonically varying forces on its hull. The power take-off (PTO) is by means of an inertia that moves either on a straight horizontal rail or on an arm that turns about a horizontal axis. Angular displacements are taken to be small, so that linear analysis is appropriate; these are idealized conditions, but any wave-energy converter must be able to operate effectively in ideal conditions. For good power capture with the least engineering difficulties, it is found that the power take-off inertia should be centred as high as possible above the overall centre of mass G. It is shown that power is captured from the waves by motion of the centre of pressure P relative to the overall centre of mass G. This can only result from motion in pitch and is dependent on the fact that there is a large vertical distance between points P and G. It is found in practical cases that the added mass of water generally brings G closer to P, and this limits the power that can be captured.",
keywords = "pitching, surging, wave-energy converter, internal mass, sinusoidal waves",
author = "Widden, {M. B.} and French, {M. J.} and Aggidis, {George A.}",
year = "2008",
doi = "10.1243/14750902JEME47",
language = "English",
volume = "222",
pages = "153--161",
journal = "Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment",
issn = "1475-0902",
publisher = "SAGE Publications Ltd",
number = "Number",

}

RIS

TY - JOUR

T1 - Analysis of a pitching-and-surging wave-energy converter that reacts against an internal mass, when operating in regular sinusoidal waves.

AU - Widden, M. B.

AU - French, M. J.

AU - Aggidis, George A.

PY - 2008

Y1 - 2008

N2 - The paper examines the behaviour of a pitching-and-surging wave-energy converter driven by unidirectional waves that exert harmonically varying forces on its hull. The power take-off (PTO) is by means of an inertia that moves either on a straight horizontal rail or on an arm that turns about a horizontal axis. Angular displacements are taken to be small, so that linear analysis is appropriate; these are idealized conditions, but any wave-energy converter must be able to operate effectively in ideal conditions. For good power capture with the least engineering difficulties, it is found that the power take-off inertia should be centred as high as possible above the overall centre of mass G. It is shown that power is captured from the waves by motion of the centre of pressure P relative to the overall centre of mass G. This can only result from motion in pitch and is dependent on the fact that there is a large vertical distance between points P and G. It is found in practical cases that the added mass of water generally brings G closer to P, and this limits the power that can be captured.

AB - The paper examines the behaviour of a pitching-and-surging wave-energy converter driven by unidirectional waves that exert harmonically varying forces on its hull. The power take-off (PTO) is by means of an inertia that moves either on a straight horizontal rail or on an arm that turns about a horizontal axis. Angular displacements are taken to be small, so that linear analysis is appropriate; these are idealized conditions, but any wave-energy converter must be able to operate effectively in ideal conditions. For good power capture with the least engineering difficulties, it is found that the power take-off inertia should be centred as high as possible above the overall centre of mass G. It is shown that power is captured from the waves by motion of the centre of pressure P relative to the overall centre of mass G. This can only result from motion in pitch and is dependent on the fact that there is a large vertical distance between points P and G. It is found in practical cases that the added mass of water generally brings G closer to P, and this limits the power that can be captured.

KW - pitching

KW - surging

KW - wave-energy converter

KW - internal mass

KW - sinusoidal waves

U2 - 10.1243/14750902JEME47

DO - 10.1243/14750902JEME47

M3 - Journal article

VL - 222

SP - 153

EP - 161

JO - Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment

JF - Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment

SN - 1475-0902

IS - Number

ER -