Influence of soil-structure interaction on dynamics of offshore wind turbine structure

T. Wansuwan; Y. Sapsathiarn

doi:10.1007/978-981-15-8079-6_54

Influence of soil-structure interaction on dynamics of offshore wind turbine structure

T. Wansuwan
, Y. Sapsathiarn

Department of Civil and Environmental Engineering

Mahidol University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Citation (Scopus)

Abstract

Offshore wind turbines have a potential to provide a reliable alternative source of energy. The wind turbine structure must be designed by keeping the fundamental natural frequency of the system away from the excitation frequencies so as to avoid the resonance condition. This paper presents a finite element-based dynamic analysis of offshore wind turbines with monopile foundations including the soil-structure interaction effects to assess the natural frequencies of wind turbine systems. The model for wind turbine structure developed herein is based on the Euler-Bernoulli beam-column theory with a varying stiffness along its length. A tapered tubular wind turbine column is considered for analysis. Selected numerical results are presented to portray the influence of various foundation systems, i.e., fixed support, elastic end-support model with a set of springs and nonlinear p-y model, on natural frequency of offshore wind turbines. The numerical results for selected case studies suggest that the interaction between the foundation and wind turbine structure should be taken into consideration in the analysis for evaluating the natural frequency of offshore wind turbine systems.

Original language	English
Title of host publication	EASEC16 - Proceedings of the 16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019
Editors	Chien Ming Wang, Sritawat Kitipornchai, Vinh Dao
Publisher	Springer Science and Business Media Deutschland GmbH
Pages	559-567
Number of pages	9
ISBN (Print)	9789811580789
DOIs	https://doi.org/10.1007/978-981-15-8079-6_54
Publication status	Published - 2021
Event	16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019 - Brisbane, Australia Duration: 3 Dec 2019 → 6 Dec 2019

Publication series

Name	Lecture Notes in Civil Engineering
Volume	101
ISSN (Print)	2366-2557
ISSN (Electronic)	2366-2565

Conference

Conference	16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019
Country/Territory	Australia
City	Brisbane
Period	3/12/19 → 6/12/19

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy
SDG 14 Life Below Water

Keywords

Dynamics
Foundation stiffness
Monopile
Natural frequency
Offshore wind turbine
P-y curve
Soil-structure interaction

Access to Document

10.1007/978-981-15-8079-6_54

Cite this

Wansuwan, T., & Sapsathiarn, Y. (2021). Influence of soil-structure interaction on dynamics of offshore wind turbine structure. In C. M. Wang, S. Kitipornchai, & V. Dao (Eds.), EASEC16 - Proceedings of the 16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019 (pp. 559-567). (Lecture Notes in Civil Engineering; Vol. 101). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/978-981-15-8079-6_54

Wansuwan, T. ; Sapsathiarn, Y. / Influence of soil-structure interaction on dynamics of offshore wind turbine structure. EASEC16 - Proceedings of the 16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019. editor / Chien Ming Wang ; Sritawat Kitipornchai ; Vinh Dao. Springer Science and Business Media Deutschland GmbH, 2021. pp. 559-567 (Lecture Notes in Civil Engineering).

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title = "Influence of soil-structure interaction on dynamics of offshore wind turbine structure",

abstract = "Offshore wind turbines have a potential to provide a reliable alternative source of energy. The wind turbine structure must be designed by keeping the fundamental natural frequency of the system away from the excitation frequencies so as to avoid the resonance condition. This paper presents a finite element-based dynamic analysis of offshore wind turbines with monopile foundations including the soil-structure interaction effects to assess the natural frequencies of wind turbine systems. The model for wind turbine structure developed herein is based on the Euler-Bernoulli beam-column theory with a varying stiffness along its length. A tapered tubular wind turbine column is considered for analysis. Selected numerical results are presented to portray the influence of various foundation systems, i.e., fixed support, elastic end-support model with a set of springs and nonlinear p-y model, on natural frequency of offshore wind turbines. The numerical results for selected case studies suggest that the interaction between the foundation and wind turbine structure should be taken into consideration in the analysis for evaluating the natural frequency of offshore wind turbine systems.",

keywords = "Dynamics, Foundation stiffness, Monopile, Natural frequency, Offshore wind turbine, P-y curve, Soil-structure interaction",

author = "T. Wansuwan and Y. Sapsathiarn",

note = "Publisher Copyright: {\textcopyright} Springer Nature Singapore Pte Ltd. 2021.; 16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019 ; Conference date: 03-12-2019 Through 06-12-2019",

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Wansuwan, T & Sapsathiarn, Y 2021, Influence of soil-structure interaction on dynamics of offshore wind turbine structure. in CM Wang, S Kitipornchai & V Dao (eds), EASEC16 - Proceedings of the 16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019. Lecture Notes in Civil Engineering, vol. 101, Springer Science and Business Media Deutschland GmbH, pp. 559-567, 16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019, Brisbane, Australia, 3/12/19. https://doi.org/10.1007/978-981-15-8079-6_54

Influence of soil-structure interaction on dynamics of offshore wind turbine structure. / Wansuwan, T.; Sapsathiarn, Y.
EASEC16 - Proceedings of the 16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019. ed. / Chien Ming Wang; Sritawat Kitipornchai; Vinh Dao. Springer Science and Business Media Deutschland GmbH, 2021. p. 559-567 (Lecture Notes in Civil Engineering; Vol. 101).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Influence of soil-structure interaction on dynamics of offshore wind turbine structure

AU - Wansuwan, T.

AU - Sapsathiarn, Y.

N1 - Publisher Copyright: © Springer Nature Singapore Pte Ltd. 2021.

PY - 2021

Y1 - 2021

N2 - Offshore wind turbines have a potential to provide a reliable alternative source of energy. The wind turbine structure must be designed by keeping the fundamental natural frequency of the system away from the excitation frequencies so as to avoid the resonance condition. This paper presents a finite element-based dynamic analysis of offshore wind turbines with monopile foundations including the soil-structure interaction effects to assess the natural frequencies of wind turbine systems. The model for wind turbine structure developed herein is based on the Euler-Bernoulli beam-column theory with a varying stiffness along its length. A tapered tubular wind turbine column is considered for analysis. Selected numerical results are presented to portray the influence of various foundation systems, i.e., fixed support, elastic end-support model with a set of springs and nonlinear p-y model, on natural frequency of offshore wind turbines. The numerical results for selected case studies suggest that the interaction between the foundation and wind turbine structure should be taken into consideration in the analysis for evaluating the natural frequency of offshore wind turbine systems.

AB - Offshore wind turbines have a potential to provide a reliable alternative source of energy. The wind turbine structure must be designed by keeping the fundamental natural frequency of the system away from the excitation frequencies so as to avoid the resonance condition. This paper presents a finite element-based dynamic analysis of offshore wind turbines with monopile foundations including the soil-structure interaction effects to assess the natural frequencies of wind turbine systems. The model for wind turbine structure developed herein is based on the Euler-Bernoulli beam-column theory with a varying stiffness along its length. A tapered tubular wind turbine column is considered for analysis. Selected numerical results are presented to portray the influence of various foundation systems, i.e., fixed support, elastic end-support model with a set of springs and nonlinear p-y model, on natural frequency of offshore wind turbines. The numerical results for selected case studies suggest that the interaction between the foundation and wind turbine structure should be taken into consideration in the analysis for evaluating the natural frequency of offshore wind turbine systems.

KW - Dynamics

KW - Foundation stiffness

KW - Monopile

KW - Natural frequency

KW - Offshore wind turbine

KW - P-y curve

KW - Soil-structure interaction

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M3 - Conference contribution

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SN - 9789811580789

T3 - Lecture Notes in Civil Engineering

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BT - EASEC16 - Proceedings of the 16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019

A2 - Wang, Chien Ming

A2 - Kitipornchai, Sritawat

A2 - Dao, Vinh

PB - Springer Science and Business Media Deutschland GmbH

T2 - 16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019

Y2 - 3 December 2019 through 6 December 2019

ER -

Wansuwan T, Sapsathiarn Y. Influence of soil-structure interaction on dynamics of offshore wind turbine structure. In Wang CM, Kitipornchai S, Dao V, editors, EASEC16 - Proceedings of the 16th East Asian-Pacific Conference on Structural Engineering and Construction, 2019. Springer Science and Business Media Deutschland GmbH. 2021. p. 559-567. (Lecture Notes in Civil Engineering). doi: 10.1007/978-981-15-8079-6_54

Influence of soil-structure interaction on dynamics of offshore wind turbine structure

Abstract

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UN SDGs

Keywords

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