PSI - Issue 48

Available online at www.sciencedirect.com Structural Integrity Procedia 00 (2023) 000–000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2023) 000–000 Available online at www.sciencedirect.com ScienceDirect

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Procedia Structural Integrity 48 (2023) 58–64

© 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the IRAS 2023 organizers Abstract In recent years, the research and development of floating offshore wind turbines (FOWT) have accelerated to harvest energy more effectively by aiming for higher and more stable wind speeds. As the sites develop further offshore and into deeper water, the hydrodynamics parameter of the floater becomes increasingly important due to its significant impact on the wind turbine's performance. In this regard, the present papers discuss the phenomenon of response dynamics that changes in floater geometry affect the hydrodynamic performance of FOWT by utilizing the potential flow theory in BEM solver via the open-source software NEMOH. The OC3-Hywind spar-type floating platform was selected, and the geometric was varied to adapt to the depth of the site. Initially, the hydrodynamic analysis was conducted using a reference model, and the results were compared with the reference data. Based on the results, it is found that that pattern from the pioneer work and the current study has the differences 3-5%. © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the IRAS 2023 organizers Second International Symposium on Risk Analysis and Safety of Complex Structures and Components (IRAS 2023) The dynamic parameters of a spar-type floating offshore wind turbine: A benchmarking assessment Nurman Firdaus a , Baharuddin Ali a , Ristiyanto Adiputra a *, Aditya Rio Prabowo b , Navik Puryantini a , Nurul Huda c a Research Center for Hydrodynamics Technology, National Research and Innovation Agency, BRIN, Surabaya, 60112, Indonesia b Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia c National Institute for Aquatic Resources, Technical University of Denmark, Lyngby 2800, Denmark Abstract In recent years, the research and development of floating offshore wind turbines (FOWT) have accelerated to harvest energy more effectively by aiming for higher and more stable wind speeds. As the sites develop further offshore and into deeper water, the hydrodynamics parameter of the floater becomes increasingly important due to its significant impact on the wind turbine's performance. In this regard, the present papers discuss the phenomenon of response dynamics that changes in floater geometry affect the hydrodynamic performance of FOWT by utilizing the potential flow theory in BEM solver via the open-source software NEMOH. The OC3-Hywind spar-type floating platform was selected, and the geometric was varied to adapt to the depth of the site. Initially, the hydrodynamic analysis was conducted using a reference model, and the results were compared with the reference data. Based on the results, it is found that that pattern from the pioneer work and the current study has the differences 3-5%. © 2023 The Authors. Published by ELSEVIER B.V. Second International Symposium on Risk Analysis and Safety of Complex Structures and Components (IRAS 2023) The dynamic parameters of a spar-type floating offshore wind turbine: A benchmarking assessment Nurman Firdaus a , Baharuddin Ali a , Ristiyanto Adiputra a *, Aditya Rio Prabowo b , Navik Puryantini a , Nurul Huda c a Research Center for Hydrodynamics Technology, National Research and Innovation Agency, BRIN, Surabaya, 60112, Indonesia b Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia c National Institute for Aquatic Resources, Technical University of Denmark, Lyngby 2800, Denmark

Keywords: Spar-FOWT; Hydrodynamic characteristic; Floating object; Motion behavior Keywords: Spar-FOWT; Hydrodynamic characteristic; Floating object; Motion behavior

* Corresponding author. Tel.: /; fax: /. E-mail address: ristiyanto.adiputra@brin.go.id 1. Introduction * Corresponding author. Tel.: /; fax: /. E-mail address: ristiyanto.adiputra@brin.go.id 1. Introduction

Demand for clean energy, in form of solar-based, wind-based, water-based, tidal-based, etc., is rising in the recent decade as high intensity of environment degradation to harvest materials for fossil-based fuel (Adiputra and Demand for clean energy, in form of solar-based, wind-based, water-based, tidal-based, etc., is rising in the recent decade as high intensity of environment degradation to harvest materials for fossil-based fuel (Adiputra and

2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the IRAS 2023 organizers 2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the IRAS 2023 organizers

2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the IRAS 2023 organizers 10.1016/j.prostr.2023.07.110