Details
Original language | English |
---|---|
Article number | 04024023 |
Number of pages | 19 |
Journal | Journal of Waterway, Port, Coastal and Ocean Engineering |
Volume | 151 |
Issue number | 1 |
Early online date | 25 Oct 2024 |
Publication status | Published - 2025 |
Abstract
This paper presents a numerical modeling approach to analyze the dynamic response of gravity anchors subjected to waves at various submergence depths. The aim is to model stages of lowering during the installation process of offshore wind energy installations. The study includes an investigation of the effect of different outer shapes of the gravity anchor to understand the influence on the dynamic response of the anchor. The results demonstrate that the submergence depth has a significant impact on the stability of the anchor during the lowering process, particularly at the initial lowering phase, resulting in higher wave-induced forces and increased risks of instability. With the use of streamlined anchor shapes, compared with the results for the baseline anchor, a reduction of 20.9% and 16.6% in heave, 47.8% and 45.8% in pitch, and 73.4% and 75.3% in surge motions are observed for C- and V-shaped anchors, respectively. When comparing the influence of different wave parameters, compared with the wave height, the wavelength is shown to drive undesirable anchor dynamic motions.
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
- Environmental Science(all)
- Water Science and Technology
- Engineering(all)
- Ocean Engineering
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In: Journal of Waterway, Port, Coastal and Ocean Engineering, Vol. 151, No. 1, 04024023, 2025.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Numerical Investigation on the Motion Dynamics of Submerged Gravity Anchors Exposed to Wave Action
AU - Vanjakula, Vinay Kumar
AU - Windt, Christian
AU - Adam, Frank
AU - Goseberg, Nils
N1 - Publisher Copyright: © 2024 This work is made available under the terms of the Creative Commons Attribution 4.0 International license.
PY - 2025
Y1 - 2025
N2 - This paper presents a numerical modeling approach to analyze the dynamic response of gravity anchors subjected to waves at various submergence depths. The aim is to model stages of lowering during the installation process of offshore wind energy installations. The study includes an investigation of the effect of different outer shapes of the gravity anchor to understand the influence on the dynamic response of the anchor. The results demonstrate that the submergence depth has a significant impact on the stability of the anchor during the lowering process, particularly at the initial lowering phase, resulting in higher wave-induced forces and increased risks of instability. With the use of streamlined anchor shapes, compared with the results for the baseline anchor, a reduction of 20.9% and 16.6% in heave, 47.8% and 45.8% in pitch, and 73.4% and 75.3% in surge motions are observed for C- and V-shaped anchors, respectively. When comparing the influence of different wave parameters, compared with the wave height, the wavelength is shown to drive undesirable anchor dynamic motions.
AB - This paper presents a numerical modeling approach to analyze the dynamic response of gravity anchors subjected to waves at various submergence depths. The aim is to model stages of lowering during the installation process of offshore wind energy installations. The study includes an investigation of the effect of different outer shapes of the gravity anchor to understand the influence on the dynamic response of the anchor. The results demonstrate that the submergence depth has a significant impact on the stability of the anchor during the lowering process, particularly at the initial lowering phase, resulting in higher wave-induced forces and increased risks of instability. With the use of streamlined anchor shapes, compared with the results for the baseline anchor, a reduction of 20.9% and 16.6% in heave, 47.8% and 45.8% in pitch, and 73.4% and 75.3% in surge motions are observed for C- and V-shaped anchors, respectively. When comparing the influence of different wave parameters, compared with the wave height, the wavelength is shown to drive undesirable anchor dynamic motions.
UR - http://www.scopus.com/inward/record.url?scp=85210320894&partnerID=8YFLogxK
U2 - 10.1061/JWPED5.WWENG-2122
DO - 10.1061/JWPED5.WWENG-2122
M3 - Article
AN - SCOPUS:85210320894
VL - 151
JO - Journal of Waterway, Port, Coastal and Ocean Engineering
JF - Journal of Waterway, Port, Coastal and Ocean Engineering
SN - 0733-950X
IS - 1
M1 - 04024023
ER -