Natural frequency and sensitivity analysis of tripod foundation for offshore wind turbine

Jianhua Zhang; Qiyu Wang; Chunwei Zhang; Dianwei Gao

Natural frequency and sensitivity analysis of tripod foundation for offshore wind turbine

Jianhua Zhang
, Qiyu Wang
, Chunwei Zhang
, Dianwei Gao

Western Sydney University

Research output: Chapter in Book / Conference Paper › Conference Paper › peer-review

Abstract

Natural frequencies of the tripod are generally taken as the primary indicators of dynamic response, and Pile Soil Interaction (PSI) will affect the natural frequency. To simulate PSI behaviour, P-Y method and simplified method are compared in a case study of tripod of 3 MW OWT in China to define the applicable clamped length in simplified method, the results demonstrate that 6 times of diameter is suitable for simulating frequency of the tripod. The sensitivities of geometries and material properties of tripod to natural frequency are investigated using random finite element method considering uncertainties in the design variables and materials. It is highlighted that understanding relationship between design parameters and natural frequency and develop a more effective approach to regulate the design once the structures cannot meet the requirement in preliminary design.

Original language	English
Title of host publication	Mechanics of Structures and Materials: Advancements and Challenges: Proceedings of the 24th Australasian Conference on the Mechanics of Structures and Materials (ACMSM24), Perth, Australia, 6-9 December 2016
Publisher	CRC Press
Pages	895-902
Number of pages	6
ISBN (Print)	9781138029934
Publication status	Published - 2017
Event	Australasian Conference on the Mechanics of Structures and Materials - Duration: 6 Dec 2016 → …

Conference

Conference	Australasian Conference on the Mechanics of Structures and Materials
Period	6/12/16 → …

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

design and construction
finite element method
mechanics
offshore wind power plants
wind turbines

Cite this

Zhang, J., Wang, Q., Zhang, C., & Gao, D. (2017). Natural frequency and sensitivity analysis of tripod foundation for offshore wind turbine. In Mechanics of Structures and Materials: Advancements and Challenges: Proceedings of the 24th Australasian Conference on the Mechanics of Structures and Materials (ACMSM24), Perth, Australia, 6-9 December 2016 (pp. 895-902). CRC Press.

Zhang, Jianhua ; Wang, Qiyu ; Zhang, Chunwei et al. / Natural frequency and sensitivity analysis of tripod foundation for offshore wind turbine. Mechanics of Structures and Materials: Advancements and Challenges: Proceedings of the 24th Australasian Conference on the Mechanics of Structures and Materials (ACMSM24), Perth, Australia, 6-9 December 2016. CRC Press, 2017. pp. 895-902

@inproceedings{bef43f0d44df494c9e3a36859f89fe5a,

title = "Natural frequency and sensitivity analysis of tripod foundation for offshore wind turbine",

abstract = "Natural frequencies of the tripod are generally taken as the primary indicators of dynamic response, and Pile Soil Interaction (PSI) will affect the natural frequency. To simulate PSI behaviour, P-Y method and simplified method are compared in a case study of tripod of 3 MW OWT in China to define the applicable clamped length in simplified method, the results demonstrate that 6 times of diameter is suitable for simulating frequency of the tripod. The sensitivities of geometries and material properties of tripod to natural frequency are investigated using random finite element method considering uncertainties in the design variables and materials. It is highlighted that understanding relationship between design parameters and natural frequency and develop a more effective approach to regulate the design once the structures cannot meet the requirement in preliminary design.",

keywords = "design and construction, finite element method, mechanics, offshore wind power plants, wind turbines",

author = "Jianhua Zhang and Qiyu Wang and Chunwei Zhang and Dianwei Gao",

year = "2017",

language = "English",

isbn = "9781138029934",

pages = "895--902",

booktitle = "Mechanics of Structures and Materials: Advancements and Challenges: Proceedings of the 24th Australasian Conference on the Mechanics of Structures and Materials (ACMSM24), Perth, Australia, 6-9 December 2016",

publisher = "CRC Press",

note = "Australasian Conference on the Mechanics of Structures and Materials ; Conference date: 06-12-2016",

}

Zhang, J, Wang, Q, Zhang, C & Gao, D 2017, Natural frequency and sensitivity analysis of tripod foundation for offshore wind turbine. in Mechanics of Structures and Materials: Advancements and Challenges: Proceedings of the 24th Australasian Conference on the Mechanics of Structures and Materials (ACMSM24), Perth, Australia, 6-9 December 2016. CRC Press, pp. 895-902, Australasian Conference on the Mechanics of Structures and Materials, 6/12/16.

Natural frequency and sensitivity analysis of tripod foundation for offshore wind turbine. / Zhang, Jianhua; Wang, Qiyu; Zhang, Chunwei et al.
Mechanics of Structures and Materials: Advancements and Challenges: Proceedings of the 24th Australasian Conference on the Mechanics of Structures and Materials (ACMSM24), Perth, Australia, 6-9 December 2016. CRC Press, 2017. p. 895-902.

Research output: Chapter in Book / Conference Paper › Conference Paper › peer-review

TY - GEN

T1 - Natural frequency and sensitivity analysis of tripod foundation for offshore wind turbine

AU - Zhang, Jianhua

AU - Wang, Qiyu

AU - Zhang, Chunwei

AU - Gao, Dianwei

PY - 2017

Y1 - 2017

N2 - Natural frequencies of the tripod are generally taken as the primary indicators of dynamic response, and Pile Soil Interaction (PSI) will affect the natural frequency. To simulate PSI behaviour, P-Y method and simplified method are compared in a case study of tripod of 3 MW OWT in China to define the applicable clamped length in simplified method, the results demonstrate that 6 times of diameter is suitable for simulating frequency of the tripod. The sensitivities of geometries and material properties of tripod to natural frequency are investigated using random finite element method considering uncertainties in the design variables and materials. It is highlighted that understanding relationship between design parameters and natural frequency and develop a more effective approach to regulate the design once the structures cannot meet the requirement in preliminary design.

AB - Natural frequencies of the tripod are generally taken as the primary indicators of dynamic response, and Pile Soil Interaction (PSI) will affect the natural frequency. To simulate PSI behaviour, P-Y method and simplified method are compared in a case study of tripod of 3 MW OWT in China to define the applicable clamped length in simplified method, the results demonstrate that 6 times of diameter is suitable for simulating frequency of the tripod. The sensitivities of geometries and material properties of tripod to natural frequency are investigated using random finite element method considering uncertainties in the design variables and materials. It is highlighted that understanding relationship between design parameters and natural frequency and develop a more effective approach to regulate the design once the structures cannot meet the requirement in preliminary design.

KW - design and construction

KW - finite element method

KW - mechanics

KW - offshore wind power plants

KW - wind turbines

UR - http://handle.westernsydney.edu.au:8081/1959.7/uws:44697

UR - https://www.taylorfrancis.com/books/e/9781351850216

M3 - Conference Paper

SN - 9781138029934

SP - 895

EP - 902

BT - Mechanics of Structures and Materials: Advancements and Challenges: Proceedings of the 24th Australasian Conference on the Mechanics of Structures and Materials (ACMSM24), Perth, Australia, 6-9 December 2016

PB - CRC Press

T2 - Australasian Conference on the Mechanics of Structures and Materials

Y2 - 6 December 2016

ER -

Natural frequency and sensitivity analysis of tripod foundation for offshore wind turbine

Abstract

Conference

UN SDGs

Keywords

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