Sea State Estimation Using Vessel Response in Dynamic Positioning

Astrid H. Brodtkorb; Ulrik Dam Nielsen; Asgeir J. Sørensen

doi:10.1016/j.apor.2017.09.005

Sea State Estimation Using Vessel Response in Dynamic Positioning

Astrid H. Brodtkorb^*, Ulrik Dam Nielsen, Asgeir J. Sørensen

^*Corresponding author for this work

Norwegian University of Science and Technology

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Abstract

This paper presents a novel method for estimating the sea state parameters based on the heave, roll and pitch response of a vessel in dynamic positioning (DP), i.e., without forward speed. The algorithm finds the wave spectrum estimate from the response measurements by directly solving a set of linear equations, and as a result it is computationally efficient. Themain vessel parameters are required as input. Apart from this the method is signal-based, with no assumptions on the wave spectrum shape. Performance of the proposed algorithmis demonstrated on full-scale experimental DP data of a vessel in three different sea states at head, bow, beam, quartering and following sea waves, respectively.

Original language	English
Journal	Applied Ocean Research
Volume	70
Pages (from-to)	76–86
ISSN	0141-1187
DOIs	https://doi.org/10.1016/j.apor.2017.09.005
Publication status	Published - 2018

Keywords

Sea state estimation
Vessel response
Dynamic positioning
Closed-form expressions

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title = "Sea State Estimation Using Vessel Response in Dynamic Positioning",

abstract = "This paper presents a novel method for estimating the sea state parameters based on the heave, roll and pitch response of a vessel in dynamic positioning (DP), i.e., without forward speed. The algorithm finds the wave spectrum estimate from the response measurements by directly solving a set of linear equations, and as a result it is computationally efficient. Themain vessel parameters are required as input. Apart from this the method is signal-based, with no assumptions on the wave spectrum shape. Performance of the proposed algorithmis demonstrated on full-scale experimental DP data of a vessel in three different sea states at head, bow, beam, quartering and following sea waves, respectively.",

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year = "2018",

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AU - H. Brodtkorb, Astrid

AU - Nielsen, Ulrik Dam

AU - J. Sørensen, Asgeir

PY - 2018

Y1 - 2018

N2 - This paper presents a novel method for estimating the sea state parameters based on the heave, roll and pitch response of a vessel in dynamic positioning (DP), i.e., without forward speed. The algorithm finds the wave spectrum estimate from the response measurements by directly solving a set of linear equations, and as a result it is computationally efficient. Themain vessel parameters are required as input. Apart from this the method is signal-based, with no assumptions on the wave spectrum shape. Performance of the proposed algorithmis demonstrated on full-scale experimental DP data of a vessel in three different sea states at head, bow, beam, quartering and following sea waves, respectively.

AB - This paper presents a novel method for estimating the sea state parameters based on the heave, roll and pitch response of a vessel in dynamic positioning (DP), i.e., without forward speed. The algorithm finds the wave spectrum estimate from the response measurements by directly solving a set of linear equations, and as a result it is computationally efficient. Themain vessel parameters are required as input. Apart from this the method is signal-based, with no assumptions on the wave spectrum shape. Performance of the proposed algorithmis demonstrated on full-scale experimental DP data of a vessel in three different sea states at head, bow, beam, quartering and following sea waves, respectively.

KW - Sea state estimation

KW - Vessel response

KW - Dynamic positioning

KW - Closed-form expressions

U2 - 10.1016/j.apor.2017.09.005

DO - 10.1016/j.apor.2017.09.005

M3 - Journal article

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VL - 70

SP - 76

EP - 86

JO - Applied Ocean Research

JF - Applied Ocean Research

ER -

Sea State Estimation Using Vessel Response in Dynamic Positioning

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Keywords

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