5th Computational Methods and Ocean Technology (COTech 2026)

Session

Sustainable Ocean Structures

CT09

Not scheduled

KE E-102 (University of Stavanger, Norway)

43. A framework for response analysis of a long floating bridge under combined traffic and wave actions

Mr Yi Song (Oslo Metropolitan University; Southwest Jiaotong University)

Paper Contribution

Long fjord-crossing floating bridges are critical infrastructure for road connections between land areas separated by wide and deep fjords. Such structures are subjected to complex environmental conditions while also meeting continuous traffic demand. This paper presents a numerical framework for evaluating the global response of a long floating bridge under combined traffic and wave actions....

51. Aircraft Impact Analysis of a Floating Nuclear Power Plant Considering Fluid-Structure Interaction

Mr Geonwoo Song (Department of Civil, Urban and Environmental Engineering, Seoul National University, Seoul, Republic of Korea)

Paper Contribution

Nuclear power plants must maintain containment integrity against extreme external hazards, with aircraft impact being a representative threat. Unlike land-based plants, a Floating Nuclear Power Plant (FNPP) is subjected to impact loading while undergoing 6-DOF motion with hydrodynamic forces. Therefore, conventional impact analysis methods assuming fixed-base structures cannot be applied...

32. Bias Correction of Wave Hindcast Data Along the Norwegian Coast Using Wave Buoy Observations

Mr Shoaib Ameer (University of Florence, Italy and University of Agder, Norway)

Paper Contribution

Accurate estimates of extreme wave heights are important for the design and operation of coastal and offshore infrastructure. Although long-term wave hindcasts provide valuable spatial and temporal coverage, systematic biases can affect their reliability, particularly in nearshore environments. This study presents a bias-correction framework for significant wave height from the Norwegian...

73. Boundary expansion of spectral-domain modeling approach for marine renewables

Dr Jian Tan (Delft University of Technology)

Paper Contribution

This work investigates the methodology and applicability of spectral-domain modeling for incorporating multi-variate non-differentiable nonlinearities, focusing on floating renewable energy devices. Spectral-domain modeling provides a highly competitive approach for analyzing floating renewable energy structures, such as wave energy converters (WECs) and floating wind turbines, by combining...

54. Global Screening of Offshore Renewable Energy Surplus around Ports for Maritime Decarbonization

Sanghwan Cho (Seoul national university of science & technology)

Paper Contribution

Maritime decarbonization is increasing the demand for low-carbon electricity at ports and along shipping corridors, but offshore renewable resource assessments often remain disconnected from where energy is actually consumed. This study develops a global port-centered screening framework to evaluate whether offshore wind, wave, and solar resources can support coastal and maritime energy...

105. Hybrid GA–PSO Optimization of Ambient-Cured Low-Clinker Alkali-Activated Mortars: Model Development and Experimental Verification

Sanghwan Cho (Seoul National University of Science and Technology)

Paper Contribution

Sustainable ocean structures require binders that reduce clinker content without relying on elevated-temperature curing. This study couples machine-learning-guided mix design with experimental verification for ambient-cured fly ash alkali-activated mortars containing ordinary Portland cement (OPC) and silica fume (SF). A database of 331 compressive-strength records compiled from 15 studies and...

12. Multi-Station Significant Wave Height Forecasting and Extreme Wave Event Detection in the Norwegian North Sea Using Hybrid CNN-LSTM and CNN-Transformer Models

Mr Yusef Said (University of Agder, Norway)

Paper Contribution

Accurate forecasting of significant wave height is crucial for offshore safety, marine operations, and risk assessment in the Norwegian North Sea. ERA5 reanalysis provides long, spatially continuous wave records but shows systematic bias relative to in-situ observations. This study proposes a unified, multi-station hybrid deep learning approach that integrates bias correction, multi-horizon...

47. Preliminary performance evaluation of a pontoon-type concrete modular floating platform in the frequency domain

Mr Shi Hong Wong (Monash University Malaysia)

Paper Contribution

This numerical study presents the concept and preliminary performance evaluation of a pontoon-type concrete modular floating platform, designed to serve as a supporting structure for ocean renewable infrastructure applications. The modular floating structure is constructed by connecting individual lightweight hexagonal prismatic concrete modules in a circular manner, revolving around the six...