2026-09-26T18:44:19Z https://imrecsjournal.com/journals/index.php/rietm/oai

oai:ojs.imrecsjournal.com:article/455 2026-09-24T10:46:06Z rietm:ART driver

Hydrodynamic Response Analysis of a Multi-Moonpool Floating Structure Using the Boundary Element Method Hidayat, Muhammad Taufiq Nur Prabowo, Aditya Rio Adiputra, Ristiyanto Alfajar, Mahfud Melynk, Oleksiy Jurkovic, Martin This study aims to evaluate the hydrodynamic response of a displacement-type hull integrated with a multi-moonpool system (one main and sequential cylindrical moonpools) using the Boundary Element Method (BEM), addressing the critical challenge of piston-mode resonance that causes excessive heave motion. The analysis used ANSYS AQWA based on linearized potential-flow theory, assuming infinite water depth and head-sea conditions. Grid independence tests were conducted at resolutions ranging from 5.0 m to 0.7 m, and the resulting Heave RAO curve was benchmarked against a reference dataset. A significant amplitude deviation was found in the high-frequency zone (piston-mode resonance), where the BEM solver overpredicted the heave RAO by 68.77% relative to the reference curve, while both curves showed near-perfect asymptotic alignment in the macro-wave regime. BEM is reliable for predicting motion response in the macro-wave regime, but future hydrodynamic optimization of moonpool structures requires integrating viscous damping modifiers to realistically capture resonance amplitude peaks. Keywords: Boundary element method, Floating structure, Hydrodynamics, Moonpool, Piston mode resonance. Institute of Multidisciplinary Research and Community Service 2026-09-07 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://imrecsjournal.com/journals/index.php/rietm/article/view/455 10.61436/rietm/v5i3.pp293-303 Research in Education, Technology, and Multiculture; Vol 5, No 3 (2026): Research in Education, Technology, and Multiculture; 293-303 3025-6763 eng https://imrecsjournal.com/journals/index.php/rietm/article/view/455/191 https://imrecsjournal.com/journals/index.php/rietm/article/downloadSuppFile/455/292 Copyright (c) 2026 Muhammad Taufiq Nur Hidayat, Aditya Rio Prabowo, Ristiyanto Adiputra, Mahfud Alfajar, Oleksiy Melynk, Martin Jurkovic https://creativecommons.org/licenses/by-sa/4.0