Estimation of the responses of axisymmetric bodies in spread irregular waves

A. P. McCabe; T. J. Stallard; N. J. Baker; H. Yavuz

doi:10.1016/j.oceaneng.2006.10.004

Estimation of the responses of axisymmetric bodies in spread irregular waves

A. P. McCabe, T. J. Stallard, N. J. Baker, H. Yavuz

Research output: Contribution to journal › Article › peer-review

Abstract

A method is presented of estimating the responses of axisymmetric bodies floating in spread irregular seas, using a Laplace transfer-function formulation of a floating body time-domain model. A general-case spread-wave model is formulated, using separate wave excitation transfer functions, and a simplification of this approach is proposed, reducing both model complexity and computation time. Responses are computed using both approaches and a comparison made to assess the circumstances in which the simplified approach may be used effectively. The results are also interpreted to highlight the implications of using an equivalent unidirectional wave as an approximation to a spread wave. © 2006 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	1371-1382
Number of pages	11
Journal	Ocean Engineering
Volume	34
Issue number	10
DOIs	https://doi.org/10.1016/j.oceaneng.2006.10.004
Publication status	Published - Jul 2007

Keywords

Axisymmetric bodies
Linear time-domain model
Spread irregular waves

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10.1016/j.oceaneng.2006.10.004

http://dx.doi.org/doi:10.1016/j.oceaneng.2006.10.004

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title = "Estimation of the responses of axisymmetric bodies in spread irregular waves",

abstract = "A method is presented of estimating the responses of axisymmetric bodies floating in spread irregular seas, using a Laplace transfer-function formulation of a floating body time-domain model. A general-case spread-wave model is formulated, using separate wave excitation transfer functions, and a simplification of this approach is proposed, reducing both model complexity and computation time. Responses are computed using both approaches and a comparison made to assess the circumstances in which the simplified approach may be used effectively. The results are also interpreted to highlight the implications of using an equivalent unidirectional wave as an approximation to a spread wave. {\textcopyright} 2006 Elsevier Ltd. All rights reserved.",

keywords = "Axisymmetric bodies, Linear time-domain model, Spread irregular waves",

author = "McCabe, {A. P.} and Stallard, {T. J.} and Baker, {N. J.} and H. Yavuz",

year = "2007",

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T1 - Estimation of the responses of axisymmetric bodies in spread irregular waves

AU - McCabe, A. P.

AU - Stallard, T. J.

AU - Baker, N. J.

AU - Yavuz, H.

PY - 2007/7

Y1 - 2007/7

N2 - A method is presented of estimating the responses of axisymmetric bodies floating in spread irregular seas, using a Laplace transfer-function formulation of a floating body time-domain model. A general-case spread-wave model is formulated, using separate wave excitation transfer functions, and a simplification of this approach is proposed, reducing both model complexity and computation time. Responses are computed using both approaches and a comparison made to assess the circumstances in which the simplified approach may be used effectively. The results are also interpreted to highlight the implications of using an equivalent unidirectional wave as an approximation to a spread wave. © 2006 Elsevier Ltd. All rights reserved.

AB - A method is presented of estimating the responses of axisymmetric bodies floating in spread irregular seas, using a Laplace transfer-function formulation of a floating body time-domain model. A general-case spread-wave model is formulated, using separate wave excitation transfer functions, and a simplification of this approach is proposed, reducing both model complexity and computation time. Responses are computed using both approaches and a comparison made to assess the circumstances in which the simplified approach may be used effectively. The results are also interpreted to highlight the implications of using an equivalent unidirectional wave as an approximation to a spread wave. © 2006 Elsevier Ltd. All rights reserved.

KW - Axisymmetric bodies

KW - Linear time-domain model

KW - Spread irregular waves

U2 - 10.1016/j.oceaneng.2006.10.004

DO - 10.1016/j.oceaneng.2006.10.004

M3 - Article

SN - 0029-8018

VL - 34

SP - 1371

EP - 1382

JO - Ocean Engineering

JF - Ocean Engineering

IS - 10

ER -

Estimation of the responses of axisymmetric bodies in spread irregular waves

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Keywords

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