en Offshore Structure مقاله پژوهشي Research Paper <span style="font-size:11.0pt"><span new="" roman="" style="font-family:" times="">This study investigates the hydrodynamic performance of modular, chain-type floating docks designed for high-speed boat deployment within the operational zone of Shahid Bahonar Port. Given the limitations of fixed dock infrastructure&mdash;particularly in regions with soft seabeds and tidal variations&mdash;floating docks offer a flexible, cost-effective alternative. A modular pontoon system was designed using CATIA and analyzed in ANSYS AQWA under various wave conditions (0&deg;, 45&deg;, 90&deg;, 135&deg;, and 180&deg;). Comparative simulations between single-body and multi-body configurations revealed that multi-hull docks significantly reduce vertical displacement and better distribute wave-induced forces, especially at connection points. Time-domain analyses further confirmed that joint stiffness and orientation strongly influence structural response. Elastic mooring systems enhanced the dock&rsquo;s adaptability to dynamic sea conditions while minimizing environmental impact. These findings support the development of resilient floating marine structures tailored to the hydrodynamic conditions of semi-enclosed ports like Shahid Bahonar, with implications for both defense and commercial applications in high-salinity environments.</span></span> ,Multi-hull floating docks,hydrodynamic analysis,Response Amplitude Operators (RAO),,Hydrodynamic Behavior,,High-speed Boats. 46 60 http://ijmt.ir/browse.php?a_code=A-10-8180-5&slc_lang=en&sid=1 Seyed Reza Samaei samaei@srbiau.ac.ir 10031947532846004449 10031947532846004449 No Assistant professor, Department of Civil Engineering, SR.C., Islamic Azad University, Tehran, Iran; samaei@srbiau.ac.ir Mohammad Asadian Ghahfarokhi m.asadian@srbiau.ac.ir 10031947532846004450 10031947532846004450 Yes Assistant professor, Department of Civil Engineering, SR.C., Islamic Azad University, Tehran, Iran; m.asadian@srbiau.ac.ir