Wave Actions and Responses for Large-Diameter Monopod Platform Structures

Ali Ete

doi:10.38088/jise.1614320

EN

Wave Actions and Responses for Large-Diameter Monopod Platform Structures

Abstract

The sea-wave loads acting on the fixed offshore structures are estimated by using Airy's linear wave theory and Morison's equation, dissociating the total force into an inertia force component and a drag force component. The contribution of each component of the total force on tubular members can vary significantly based on size specification, from standard pipe members of fixed jacket structures to wide-ranging cylindrical Monopod towers. Inconclusive results can be seen in some published articles in estimating static wave loads using the hydrodynamic module of offshore platforms, indicating that this is still a subject of investigation. A demonstration of an example steel Monopod under Airy's type wave loading is presented. Several finite element offshore structure simulation packages use this simple monopod model for computationally efficient static wave load case simulations. The displacement pattern and the base shear force and bending moment of the Monopod model are calculated. The analytical solution is checked with numerical results of standard commercial FE software packages for verification and comparison purposes. The results show that the wave load calculation module of the finite element-based design programs considered in this study is underestimated, mainly when the contribution of the inertia coefficient to total instantaneous wave force is dominant, like in the monopod case with a large diameter. It can be thought that the differences here are due to the inertia coefficient weighting of the Morrison equation used in wave force calculations.

Keywords

References

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Details

Primary Language

English

Subjects

Numerical Modelization in Civil Engineering

Journal Section

Research Article

Authors

Ali Ete ^*
0000-0002-4874-1567
Türkiye

Early Pub Date

June 13, 2025

Publication Date

June 17, 2025

Submission Date

January 6, 2025

Acceptance Date

April 16, 2025

Published in Issue

Year 2025 Volume: 9 Number: 1

DOI

https://doi.org/10.38088/jise.1614320

IZ

https://izlik.org/JA94HC56KR

Cite

RIS / Bibtex

APA

Ete, A. (2025). Wave Actions and Responses for Large-Diameter Monopod Platform Structures. Journal of Innovative Science and Engineering, 9(1), 134-153. https://doi.org/10.38088/jise.1614320

AMA

1.Ete A. Wave Actions and Responses for Large-Diameter Monopod Platform Structures. JISE. 2025;9(1):134-153. doi:10.38088/jise.1614320

Chicago

Ete, Ali. 2025. “Wave Actions and Responses for Large-Diameter Monopod Platform Structures”. Journal of Innovative Science and Engineering 9 (1): 134-53. https://doi.org/10.38088/jise.1614320.

EndNote

Ete A (June 1, 2025) Wave Actions and Responses for Large-Diameter Monopod Platform Structures. Journal of Innovative Science and Engineering 9 1 134–153.

IEEE

[1]A. Ete, “Wave Actions and Responses for Large-Diameter Monopod Platform Structures”, JISE, vol. 9, no. 1, pp. 134–153, June 2025, doi: 10.38088/jise.1614320.

ISNAD

Ete, Ali. “Wave Actions and Responses for Large-Diameter Monopod Platform Structures”. Journal of Innovative Science and Engineering 9/1 (June 1, 2025): 134-153. https://doi.org/10.38088/jise.1614320.

JAMA

1.Ete A. Wave Actions and Responses for Large-Diameter Monopod Platform Structures. JISE. 2025;9:134–153.

MLA

Ete, Ali. “Wave Actions and Responses for Large-Diameter Monopod Platform Structures”. Journal of Innovative Science and Engineering, vol. 9, no. 1, June 2025, pp. 134-53, doi:10.38088/jise.1614320.

Vancouver

1.Ali Ete. Wave Actions and Responses for Large-Diameter Monopod Platform Structures. JISE. 2025 Jun. 1;9(1):134-53. doi:10.38088/jise.1614320

Öz

Wave Actions and Responses for Large-Diameter Monopod Platform Structures

Abstract

Keywords

References

Details

Primary Language

Subjects

Journal Section

Authors

Early Pub Date

Publication Date

Submission Date

Acceptance Date

Published in Issue

DOI

IZ

Cite