Browsing Institutt for marin teknikk by Author "Radhakrishnan, Gowtham"
Now showing items 1-9 of 9
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Analysis of accidental iceberg impacts with large passenger vessels and FPSOs
Radhakrishnan, Gowtham (Master thesis, 2018)This Master thesis is part of the degree for the Nordic Masters in Maritime Engineering -
Analyzing the Sensitivity of Wave Frequency Responses of Floating Vessels to Uncertain System Variables Utilizing Polynomial Chaos Expansion
Radhakrishnan, Gowtham; Leira, Bernt Johan; Gao, Zhen; Sævik, Svein; Han, Xu (Peer reviewed; Journal article, 2023)From a mathematical viewpoint, the frequency domain analysis of vessel motion responses due to wave actions is based on integration of system dynamics idealized in terms of response amplitude operators for six degrees-of-freedom ... -
A Framework for Condition Monitoring and Risk-Based Decision Support Involving a Vessel State Observer
Han, Xu; Leira, Bernt Johan; Sævik, Svein; Radhakrishnan, Gowtham; Skjong, Stian; Kyllingstad, Lars Tandle (Chapter, 2021)Digital twins have attracted significant attention across different domains for decades. In the maritime and the energy industries, digital twins have been mainly used for system condition monitoring, project visualization, ... -
A Methodology for Tuning of Computational Vessel Models Utilizing Wave Measurements From X-Band Marine Radar and Wave Buoy
Radhakrishnan, Gowtham; Leira, Bernt Johan; Gao, Zhen; Sævik, Svein; Kaasen, Karl Erik; Christakos, Konstantinos; Dirdal, Johann Alexander (Chapter, 2023)Accurate estimation of the wave field and subsequent vessel response prediction are vital for making crucial judgments on the safe and timely execution of marine operations. Decision support systems based on the Response-Based ... -
Motion response prediction of marine vessels based on hydrodynamic models updated through on-site measurements.
Radhakrishnan, Gowtham; Leira, Bernt Johan; Gao, Zhen; Sævik, Svein; Gomola, Alojz (Chapter, 2022)Decision support systems in offshore vessels utilize wave parameters in combination with physics-based vessel models to predict the vessel behavior prior to the initiation and execution of a marine operation. These predictions ... -
On characteristics of ice ridges and icebergs for design of ship hulls in polar regions based on environmental design contours
Leira, Bernt Johan; Chai, Wei; Radhakrishnan, Gowtham (Journal article; Peer reviewed, 2021) -
Retrieval of Ocean Wave Spectra From X-Band Marine Radar Images Using Inversion Schemes Based on Auto-Spectral Analysis
Radhakrishnan, Gowtham; Leira, Bernt Johan; Gao, Zhen; Sævik, Svein; Christakos, Konstantinos (Chapter, 2023)Estimation of ocean wave conditions is extremely crucial for the planning and execution of demanding marine operations. Further, the Response Based Decision-Making requires accurate wave inputs to derive the responses using ... -
System Uncertainty Effects on the Wave Frequency Response Of Floating Vessels Based on Polynomial Chaos Expansion
Radhakrishnan, Gowtham; Han, Xu; Sævik, Svein; Gao, Zhen; Leira, Bernt Johan (Chapter, 2021)From a mathematical viewpoint, the frequency domain analysis of vessel motion responses due to wave actions incorporates the integration of system dynamics idealized in terms of response amplitude operators (RAOs) for 6 ... -
System Uncertainty Effects on the Wave Frequency Response of Floating Vessels Based on Polynomial Chaos Expansion
Radhakrishnan, Gowtham; Han, Xu; Sævik, Svein; Gao, Zhen; Leira, Bernt Johan (Peer reviewed; Journal article, 2021)From a mathematical viewpoint, the frequency domain analysis of vessel motion responses due to wave actions incorporates the integration of system dynamics idealized in terms of response amplitude operators (RAOs) for 6 ...