ICE INDUCED LOADS ON OFFSHORE WIND TURBINES IN THE BALTIC SEA

Kristjan Tabri; Mikko Suominen; Tõnis Tõns; Mihkel Kõrgesaar; Tanel Soa; Rando Rosenthal

doi:10.1115/OMAE2022-79035

ICE INDUCED LOADS ON OFFSHORE WIND TURBINES IN THE BALTIC SEA

Kristjan Tabri^*, Mikko Suominen, Tõnis Tõns, Mihkel Kõrgesaar, Tanel Soa, Rando Rosenthal

^*Corresponding author for this work

Department of Energy and Mechanical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Abstract

The interaction of sea ice with offshore structures is an important engineering concern in ice infested areas. This paper aims to present a procedure to evaluate ice loads acting at the offshore wind turbines in the Baltic Sea, where the waters are seasonally covered by ice. Region-specific characterization of ice thickness and ice days is done with the help of ice maps that are assessed over the period of 15 years. For each year the number of days with ice coverage and thickness are determined. The extreme value probability distribution for annual maximum ice thickness is determined by fitting an asymptotic extreme value distribution to the maximum annual ice thickness.
For ice-structure interaction, a numerical ice model suitable to for Baltic Sea ice is implemented. The ice is treated as an isotropic, brittle material described by separate stress–strain curves for compression and tension. Numerical assessment is conducted to evaluate the ice load, their maximum values and variations for a selected wind turbine foundation design.

Original language	English
Title of host publication	Proceedings of the ASME 2022 41st International Conference on Ocean, Offshore and Arctic Engineering
Publisher	American Society of Mechanical Engineers
ISBN (Electronic)	978-0-7918-8591-8
DOIs	https://doi.org/10.1115/OMAE2022-79035
Publication status	Published - Jun 2022
MoE publication type	A4 Conference publication
Event	International Conference on Ocean, Offshore and Arctic Engineering - Hamburg, Germany Duration: 5 Jun 2022 → 10 Jun 2022 Conference number: 41 https://event.asme.org/OMAE

Conference

Conference	International Conference on Ocean, Offshore and Arctic Engineering
Abbreviated title	OMAE
Country/Territory	Germany
City	Hamburg
Period	05/06/2022 → 10/06/2022
Internet address	https://event.asme.org/OMAE

Keywords

Offshore wind turbines
ice loads
ice-structure interaction

Access to Document

10.1115/OMAE2022-79035

Cite this

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title = "ICE INDUCED LOADS ON OFFSHORE WIND TURBINES IN THE BALTIC SEA",

abstract = "The interaction of sea ice with offshore structures is an important engineering concern in ice infested areas. This paper aims to present a procedure to evaluate ice loads acting at the offshore wind turbines in the Baltic Sea, where the waters are seasonally covered by ice. Region-specific characterization of ice thickness and ice days is done with the help of ice maps that are assessed over the period of 15 years. For each year the number of days with ice coverage and thickness are determined. The extreme value probability distribution for annual maximum ice thickness is determined by fitting an asymptotic extreme value distribution to the maximum annual ice thickness.For ice-structure interaction, a numerical ice model suitable to for Baltic Sea ice is implemented. The ice is treated as an isotropic, brittle material described by separate stress–strain curves for compression and tension. Numerical assessment is conducted to evaluate the ice load, their maximum values and variations for a selected wind turbine foundation design.",

keywords = "Offshore wind turbines, ice loads, ice-structure interaction",

author = "Kristjan Tabri and Mikko Suominen and T{\~o}nis T{\~o}ns and Mihkel K{\~o}rgesaar and Tanel Soa and Rando Rosenthal",

year = "2022",

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doi = "10.1115/OMAE2022-79035",

language = "English",

booktitle = "Proceedings of the ASME 2022 41st International Conference on Ocean, Offshore and Arctic Engineering",

publisher = "American Society of Mechanical Engineers",

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note = "International Conference on Ocean, Offshore and Arctic Engineering, OMAE ; Conference date: 05-06-2022 Through 10-06-2022",

url = "https://event.asme.org/OMAE",

}

Tabri, K, Suominen, M, Tõns, T, Kõrgesaar, M, Soa, T & Rosenthal, R 2022, ICE INDUCED LOADS ON OFFSHORE WIND TURBINES IN THE BALTIC SEA. in Proceedings of the ASME 2022 41st International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, International Conference on Ocean, Offshore and Arctic Engineering, Hamburg, Hamburg, Germany, 05/06/2022. https://doi.org/10.1115/OMAE2022-79035

ICE INDUCED LOADS ON OFFSHORE WIND TURBINES IN THE BALTIC SEA. / Tabri, Kristjan; Suominen, Mikko; Tõns, Tõnis et al.
Proceedings of the ASME 2022 41st International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2022.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

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T1 - ICE INDUCED LOADS ON OFFSHORE WIND TURBINES IN THE BALTIC SEA

AU - Tabri, Kristjan

AU - Suominen, Mikko

AU - Tõns, Tõnis

AU - Kõrgesaar, Mihkel

AU - Soa, Tanel

AU - Rosenthal, Rando

N1 - Conference code: 41

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N2 - The interaction of sea ice with offshore structures is an important engineering concern in ice infested areas. This paper aims to present a procedure to evaluate ice loads acting at the offshore wind turbines in the Baltic Sea, where the waters are seasonally covered by ice. Region-specific characterization of ice thickness and ice days is done with the help of ice maps that are assessed over the period of 15 years. For each year the number of days with ice coverage and thickness are determined. The extreme value probability distribution for annual maximum ice thickness is determined by fitting an asymptotic extreme value distribution to the maximum annual ice thickness.For ice-structure interaction, a numerical ice model suitable to for Baltic Sea ice is implemented. The ice is treated as an isotropic, brittle material described by separate stress–strain curves for compression and tension. Numerical assessment is conducted to evaluate the ice load, their maximum values and variations for a selected wind turbine foundation design.

AB - The interaction of sea ice with offshore structures is an important engineering concern in ice infested areas. This paper aims to present a procedure to evaluate ice loads acting at the offshore wind turbines in the Baltic Sea, where the waters are seasonally covered by ice. Region-specific characterization of ice thickness and ice days is done with the help of ice maps that are assessed over the period of 15 years. For each year the number of days with ice coverage and thickness are determined. The extreme value probability distribution for annual maximum ice thickness is determined by fitting an asymptotic extreme value distribution to the maximum annual ice thickness.For ice-structure interaction, a numerical ice model suitable to for Baltic Sea ice is implemented. The ice is treated as an isotropic, brittle material described by separate stress–strain curves for compression and tension. Numerical assessment is conducted to evaluate the ice load, their maximum values and variations for a selected wind turbine foundation design.

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KW - ice-structure interaction

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M3 - Conference article in proceedings

BT - Proceedings of the ASME 2022 41st International Conference on Ocean, Offshore and Arctic Engineering

PB - American Society of Mechanical Engineers

T2 - International Conference on Ocean, Offshore and Arctic Engineering

Y2 - 5 June 2022 through 10 June 2022

ER -

ICE INDUCED LOADS ON OFFSHORE WIND TURBINES IN THE BALTIC SEA

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Keywords

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