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Proceedings Papers

Finite Element Modelling of Ocean Thermal Energy Conversion (OTEC) Cold Water Pipe (CWP)

Ristiyanto Adiputra, Tomoaki Utsunomiya

Proc. ASME. OMAE2022, Volume 4: Ocean Space Utilization, V004T05A012, June 5–10, 2022

Paper No: OMAE2022-78135

DOI: https://doi.org/10.1115/OMAE2022-78135

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Topics: Finite element analysis, Internal flow, Modeling, Ocean thermal energy conversion, Water pipes

Proceedings Papers

Experimental Study on Dynamic Characteristics of Fluid-Conveying Pipe for OTEC

Ryoya Hisamatsu, Ristiyanto Adiputra, Tomoaki Utsunomiya

Proc. ASME. OMAE2022, Volume 4: Ocean Space Utilization, V004T05A013, June 5–10, 2022

Paper No: OMAE2022-78136

DOI: https://doi.org/10.1115/OMAE2022-78136

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Topics: Fluids, Ocean thermal energy conversion, Pipes, Water pipes

Proceedings Papers

Simplified Formulation of Coupled System Between Moored Ship and Elastic Pipe for OTEC Plantship

Ryoya Hisamatsu, Tomoaki Utsunomiya

Proc. ASME. OMAE2021, Volume 5: Ocean Space Utilization, V005T05A011, June 21–30, 2021

Paper No: OMAE2021-62122

DOI: https://doi.org/10.1115/OMAE2021-62122

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Topics: Mooring, Ocean thermal energy conversion, Pipes, Ships, Water pipes

Proceedings Papers

Development of Simplified Wear Estimation Method Considering Rolling Motion Between Mooring Chain Links for Floating Structures

Takaaki Takeuchi, Tomoaki Utsunomiya, Koji Gotoh, Iku Sato

Proc. ASME. OMAE2021, Volume 5: Ocean Space Utilization, V005T05A016, June 21–30, 2021

Paper No: OMAE2021-62574

DOI: https://doi.org/10.1115/OMAE2021-62574

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Topics: Chain, Finite element analysis, Floating structures, Floating wind turbines, Mooring, Wear

Proceedings Papers

Quantitative Wear Estimation for Floating Structures by Using 3-D Geometry of Mooring Chain

Takaaki Takeuchi, Tomoaki Utsunomiya, Koji Gotoh, Iku Sato

Proc. ASME. OMAE2020, Volume 5: Ocean Space Utilization, V005T05A012, August 3–7, 2020

Paper No: OMAE2020-18409

DOI: https://doi.org/10.1115/OMAE2020-18409

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Topics: Chain, Floating structures, Floating wind turbines, Geometry, Mooring, Wear

Proceedings Papers

Irregular Frequency Removal and Convergence in Higher-Order BEM for Wave Diffraction/Radiation Analysis

Tomoaki Utsunomiya

Proc. ASME. OMAE2019, Volume 9: Rodney Eatock Taylor Honoring Symposium on Marine and Offshore Hydrodynamics; Takeshi Kinoshita Honoring Symposium on Offshore Technology, V009T12A022, June 9–14, 2019

Paper No: OMAE2019-95482

DOI: https://doi.org/10.1115/OMAE2019-95482

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Topics: Boundary element methods, Diffraction, Radiation (Physics), Waves

Proceedings Papers

At-Sea Experiment on Durability and Residual Strength of Polyester Rope for Mooring of Floating Wind Turbine

Tomoaki Utsunomiya, Iku Sato, Koji Tanaka

Paper No: OMAE2019-95388

DOI: https://doi.org/10.1115/OMAE2019-95388

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Topics: Durability, Floating wind turbines, Mooring, Offshore wind turbines, Polyester fabrics, Ropes, Seas

Proceedings Papers

Stability Analysis of Free Hanging Riser Conveying Fluid for Ocean Thermal Energy Conversion (OTEC) Utilization

Ristiyanto Adiputra, Tomoaki Utsunomiya

Paper No: OMAE2019-96749

DOI: https://doi.org/10.1115/OMAE2019-96749

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Topics: Fluids, Ocean thermal energy conversion, Pipeline risers, Risers (Casting), Stability, Aluminum, Fiber reinforced plastics, Numerical analysis, Steel, Boundary-value problems

Proceedings Papers

Quantitative Wear Estimation for Mooring Chain of Floating Structures and its Validation

Takaaki Takeuchi, Tomoaki Utsunomiya, Koji Gotoh, Iku Sato

Proc. ASME. OMAE2019, Volume 6: Ocean Space Utilization, V006T05A017, June 9–14, 2019

Paper No: OMAE2019-96750

DOI: https://doi.org/10.1115/OMAE2019-96750

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Topics: Chain, Floating structures, Mooring, Offshore wind turbines, Wear

Proceedings Papers

Comparison of Dynamic Response in a 2MW Floating Offshore Wind Turbine During Typhoon Approaches

Koji Tanaka, Iku Sato, Tomoaki Utsunomiya, Hiromu Kakuya

Paper No: OMAE2019-95889

DOI: https://doi.org/10.1115/OMAE2019-95889

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Topics: Dynamic response, Offshore wind turbines

Proceedings Papers

Wear Performance of Mooring Chain in Wet Environment With Substitute Ocean Water

Koji Gotoh, Tetsuya Ueda, Koji Murakami, Tomoaki Utsunomiya

Proc. ASME. OMAE2019, Volume 4: Materials Technology, V004T03A045, June 9–14, 2019

Paper No: OMAE2019-95822

DOI: https://doi.org/10.1115/OMAE2019-95822

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Topics: Chain, Mooring, Oceans, Water, Wear, Finite element analysis, Floating wind turbines, Seas, Seawater, Evaluation methods

Journal Articles

Numerical Modeling and Analysis of a Hybrid-Spar Floating Wind Turbine

Tomoaki Utsunomiya, Iku Sato, Osamu Kobayashi, Takashi Shiraishi, Takashi Harada

J. Offshore Mech. Arct. Eng. June 2019, 141(3): 031903.

Paper No: OMAE-17-1221

DOI: https://doi.org/10.1115/1.4041994

Published Online: January 17, 2019

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Topics: Computer simulation, Energy generation, Floating wind turbines, Simulation, Spar platforms, Wing spars, Stress, Wind turbines, Design, Dynamic analysis

Proceedings Papers

On-Site Measurement and Numerical Modelling of a Lifting Operation for Caissons Using Floating Crane

Sho Oh, Tomoaki Utsunomiya, Kota Saiki

Proc. ASME. OMAE2018, Volume 6: Ocean Space Utilization, V006T05A020, June 17–22, 2018

Paper No: OMAE2018-77132

DOI: https://doi.org/10.1115/OMAE2018-77132

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Topics: Caissons, Crane barges, Modeling, Computer simulation, Displacement, Friction, Maintenance, Multibody dynamics, Offshore wind turbines, Ropes

Proceedings Papers

Design Optimization of Floating Structure for a 100 MW-Net Ocean Thermal Energy Conversion (OTEC) Power Plant

Ristiyanto Adiputra, Tomoaki Utsunomiya

Proc. ASME. OMAE2018, Volume 10: Ocean Renewable Energy, V010T09A016, June 17–22, 2018

Paper No: OMAE2018-77539

DOI: https://doi.org/10.1115/OMAE2018-77539

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Topics: Design, Floating structures, Ocean thermal energy conversion, Optimization, Power stations, Ships, Tankers, Seawater, Fluids, Pipeline risers

Proceedings Papers

Effect of Tensile Force for Wear Performance of Mooring Chain

Koji Gotoh, Masataka Nakagawa, Koji Murakami, Tomoaki Utsunomiya

Proc. ASME. OMAE2018, Volume 4: Materials Technology, V004T03A012, June 17–22, 2018

Paper No: OMAE2018-77960

DOI: https://doi.org/10.1115/OMAE2018-77960

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Topics: Chain, Mooring, Wear, Floating wind turbines, Seas, Evaluation methods, Finite element analysis, Maintenance, Numerical analysis, Renewable energy

Proceedings Papers

Demonstration Test for Using Suction Anchor and Polyester Rope in Floating Offshore Wind Turbine

Tomoaki Utsunomiya, Kinji Sekita, Katsutoshi Kita, Iku Sato

Proc. ASME. OMAE2017, Volume 10: Ocean Renewable Energy, V010T09A082, June 25–30, 2017

Paper No: OMAE2017-62197

DOI: https://doi.org/10.1115/OMAE2017-62197

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Topics: Offshore wind turbines, Polyester fabrics, Ropes, Suction, Soil, Design methodology, Dimensions, Floating wind turbines, Mooring, Pressure

Proceedings Papers

Numerical Modelling and Analysis of a Hybrid-Spar Floating Wind Turbine

Tomoaki Utsunomiya, Iku Sato, Osamu Kobayashi, Takashi Shiraishi, Takashi Harada

Proc. ASME. OMAE2017, Volume 9: Offshore Geotechnics; Torgeir Moan Honoring Symposium, V009T12A049, June 25–30, 2017

Paper No: OMAE2017-62578

DOI: https://doi.org/10.1115/OMAE2017-62578

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Topics: Floating wind turbines, Modeling, Spar platforms, Wing spars, Design, Numerical analysis, Ocean engineering, Prestressed concrete, Steel, Stress

Proceedings Papers

Wear Performance of the Mooring Chain Used in Floating Wind Turbines

Koji Gotoh, Koji Murakami, Masataka Nakagawa, Tomoaki Utsunomiya

Proc. ASME. OMAE2017, Volume 4: Materials Technology, V004T03A032, June 25–30, 2017

Paper No: OMAE2017-62195

DOI: https://doi.org/10.1115/OMAE2017-62195

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Topics: Chain, Floating wind turbines, Mooring, Wear, Computer simulation, Damage, Evaluation methods, Finite element model, Floating bodies, Ocean engineering

Proceedings Papers

Design and Installation of a Hybrid-Spar Floating Wind Turbine Platform

Tomoaki Utsunomiya, Iku Sato, Osamu Kobayashi, Takashi Shiraishi, Takashi Harada

Proc. ASME. OMAE2015, Volume 9: Ocean Renewable Energy, V009T09A063, May 31–June 5, 2015

Paper No: OMAE2015-41544

DOI: https://doi.org/10.1115/OMAE2015-41544

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Topics: Design, Floating wind turbines, Spar platforms, Design methodology, Dynamic analysis, Fatigue analysis, Ocean engineering, Offshore wind turbines, Prestressed concrete, Steel

Proceedings Papers

Dynamic Response of a Spar-Type Floating Wind Turbine at Power Generation

Tomoaki Utsunomiya, Shigeo Yoshida, Soichiro Kiyoki, Iku Sato, Shigesuke Ishida

Proc. ASME. OMAE2014, Volume 7: Ocean Space Utilization; Professor Emeritus J. Randolph Paulling Honoring Symposium on Ocean Technology, V007T05A027, June 8–13, 2014

Paper No: OMAE2014-24693

DOI: https://doi.org/10.1115/OMAE2014-24693

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Topics: Dynamic response, Energy generation, Floating wind turbines, Spar platforms, Wing spars, Steel, Computer simulation, Dynamics (Mechanics), Mooring, Ocean engineering

Journal citation

NARROW

Finite Element Modelling of Ocean Thermal Energy Conversion (OTEC) Cold Water Pipe (CWP)

Experimental Study on Dynamic Characteristics of Fluid-Conveying Pipe for OTEC

Simplified Formulation of Coupled System Between Moored Ship and Elastic Pipe for OTEC Plantship

Development of Simplified Wear Estimation Method Considering Rolling Motion Between Mooring Chain Links for Floating Structures

Quantitative Wear Estimation for Floating Structures by Using 3-D Geometry of Mooring Chain

Irregular Frequency Removal and Convergence in Higher-Order BEM for Wave Diffraction/Radiation Analysis

At-Sea Experiment on Durability and Residual Strength of Polyester Rope for Mooring of Floating Wind Turbine

Stability Analysis of Free Hanging Riser Conveying Fluid for Ocean Thermal Energy Conversion (OTEC) Utilization

Quantitative Wear Estimation for Mooring Chain of Floating Structures and its Validation

Comparison of Dynamic Response in a 2MW Floating Offshore Wind Turbine During Typhoon Approaches

Wear Performance of Mooring Chain in Wet Environment With Substitute Ocean Water

Numerical Modeling and Analysis of a Hybrid-Spar Floating Wind Turbine

On-Site Measurement and Numerical Modelling of a Lifting Operation for Caissons Using Floating Crane

Design Optimization of Floating Structure for a 100 MW-Net Ocean Thermal Energy Conversion (OTEC) Power Plant

Effect of Tensile Force for Wear Performance of Mooring Chain

Demonstration Test for Using Suction Anchor and Polyester Rope in Floating Offshore Wind Turbine

Numerical Modelling and Analysis of a Hybrid-Spar Floating Wind Turbine

Wear Performance of the Mooring Chain Used in Floating Wind Turbines

Design and Installation of a Hybrid-Spar Floating Wind Turbine Platform

Dynamic Response of a Spar-Type Floating Wind Turbine at Power Generation

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