1-20 of 85
Tomoki Ikoma
Close
Save search
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

Effects of Second-Order Hydrodynamic Loads on a Barge-Type Floating Wind Turbine Platform With Moonpools

Lei Tan, Yingyi Liu, Tomoki Ikoma
Proc. ASME. OMAE2024, Volume 1: Offshore Technology, V001T01A014, June 9–14, 2024
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2024-124158
https://doi.org/10.1115/OMAE2024-124158
View Paper titled, Effects of Second-Order Hydrodynamic Loads on a Barge-Type Floating Wind Turbine Platform With Moonpools
Open the PDF for Effects of Second-Order Hydrodynamic Loads on a Barge-Type Floating Wind Turbine Platform With Moonpools in another window
Topics: Floating wind turbines, Stress, Wave drift, Resonance, Engineering prototypes, Engineering simulation, Numerical analysis, Simulation, Surges, Transfer functions
Proceedings Papers

A Numerical Study on Swing Motion of Single Point Mooring Floating Vertical-Axis Wind Turbines With Variable-Pitch Blades

Yuta Fukunaga, Tomoki Ikoma, Lei Tan
Proc. ASME. OMAE2024, Volume 4: Ocean Space Utilization, V004T05A026, June 9–14, 2024
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2024-127454
https://doi.org/10.1115/OMAE2024-127454
View Paper titled, A Numerical Study on Swing Motion of Single Point Mooring Floating Vertical-Axis Wind Turbines With Variable-Pitch Blades
Open the PDF for A Numerical Study on Swing Motion of Single Point Mooring Floating Vertical-Axis Wind Turbines With Variable-Pitch Blades in another window
Topics: Blades, Mooring, Vertical axis wind turbines
Proceedings Papers

A Basic Investigation of Resonance Characteristics of Water Regions of PW-OWC WECs

Tomoki Ikoma, Airi Kuwata, Yasuhiro Aida, Koichi Masuda
Proc. ASME. OMAE2023, Volume 4: Ocean Space Utilization, V004T05A017, June 11–16, 2023
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2023-104669
https://doi.org/10.1115/OMAE2023-104669
View Paper titled, A Basic Investigation of Resonance Characteristics of Water Regions of PW-OWC WECs
Open the PDF for A Basic Investigation of Resonance Characteristics of Water Regions of PW-OWC WECs in another window
Topics: Resonance, Water
Proceedings Papers

Numerical Study on the Deceleration Effect of Impact Velocity of Tsunami Drifting Objects in Front of Structures

Mebae Takekawa, Yasuhiro Aida, Hibiki Nakazawa, Ami Sasaki, Tomoki Ikoma, Koichi Masuda
Proc. ASME. OMAE2023, Volume 4: Ocean Space Utilization, V004T05A023, June 11–16, 2023
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2023-104612
https://doi.org/10.1115/OMAE2023-104612
View Paper titled, Numerical Study on the Deceleration Effect of Impact Velocity of Tsunami Drifting Objects in Front of Structures
Open the PDF for Numerical Study on the Deceleration Effect of Impact Velocity of Tsunami Drifting Objects in Front of Structures in another window
Topics: Tsunamis
Proceedings Papers

Experimental Investigation of Roughness Effect on Flow Field Around Cylinder in Steady Flow

Masahiro Suzuki, Tomoki Ikoma, Chang-Kyu Rheem, Yasuhiro Aida
Proc. ASME. OMAE2022, Volume 4: Ocean Space Utilization, V004T05A030, June 5–10, 2022
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2022-79452
https://doi.org/10.1115/OMAE2022-79452
View Paper titled, Experimental Investigation of Roughness Effect on Flow Field Around Cylinder in Steady Flow
Open the PDF for Experimental Investigation of Roughness Effect on Flow Field Around Cylinder in Steady Flow in another window
Topics: Cylinders, Flow (Dynamics), Surface roughness, Water
Proceedings Papers

Motion Characteristics of a Floating Model With Moonpools for VAWTs

Tomoki Ikoma, Katsuhide Fujishima, Yasuhiro Aida, Tan Lei, Koichi Masuda
Proc. ASME. OMAE2022, Volume 4: Ocean Space Utilization, V004T05A017, June 5–10, 2022
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2022-79153
https://doi.org/10.1115/OMAE2022-79153
View Paper titled, Motion Characteristics of a Floating Model With Moonpools for VAWTs
Open the PDF for Motion Characteristics of a Floating Model With Moonpools for VAWTs in another window
Topics: Vertical axis wind turbines, Waves
Proceedings Papers

Two-Dimensional Numerical Analysis of Mean Wave Drift Loads on Two Fixed Boxes

Lei Tan, Tomoki Ikoma, Changhong Hu
Proc. ASME. OMAE2022, Volume 5A: Ocean Engineering, V05AT06A022, June 5–10, 2022
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2022-79910
https://doi.org/10.1115/OMAE2022-79910
View Paper titled, Two-Dimensional Numerical Analysis of Mean Wave Drift Loads on Two Fixed Boxes
Open the PDF for Two-Dimensional Numerical Analysis of Mean Wave Drift Loads on Two Fixed Boxes in another window
Topics: Computation, Computer simulation, Damping, Floating bodies, Numerical analysis, Pistons, Resonance, Shapes, Surges, Vessels
Proceedings Papers

Experimental Study on the End Effect and the Effect Due to the Difference in End Shape of the Fluid Force Acting on a Rotating Cylinder in a Uniform Flow

Masahiro Suzuki, Tomoki Ikoma, Yasuhiro Aida, Chang-Kyu Rheem
Proc. ASME. OMAE2021, Volume 5: Ocean Space Utilization, V005T05A027, June 21–30, 2021
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2021-62589
https://doi.org/10.1115/OMAE2021-62589
View Paper titled, Experimental Study on the End Effect and the Effect Due to the Difference in End Shape of the Fluid Force Acting on a Rotating Cylinder in a Uniform Flow
Open the PDF for Experimental Study on the End Effect and the Effect Due to the Difference in End Shape of the Fluid Force Acting on a Rotating Cylinder in a Uniform Flow in another window
Topics: Cylinders, Flow (Dynamics), Fluids, Shapes, Water
Proceedings Papers

Development of a Simulation System for Estimating the Impact Force of Tsunami Drift Using the Explicit MPS Method

Yasuhiro Aida, Tomoki Ikoma, Koichi Masuda
Proc. ASME. OMAE2021, Volume 5: Ocean Space Utilization, V005T05A018, June 21–30, 2021
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2021-62244
https://doi.org/10.1115/OMAE2021-62244
View Paper titled, Development of a Simulation System for Estimating the Impact Force of Tsunami Drift Using the Explicit MPS Method
Open the PDF for Development of a Simulation System for Estimating the Impact Force of Tsunami Drift Using the Explicit MPS Method in another window
Topics: Simulation, Tsunamis
Proceedings Papers

Mean Wave Drift Force on a Barge-Type Floating Wind Turbine With Moonpools

Lei Tan, Tomoki Ikoma, Yasuhiro Aida, Koichi Masuda
Proc. ASME. OMAE2021, Volume 6: Ocean Engineering, V006T06A007, June 21–30, 2021
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2021-62241
https://doi.org/10.1115/OMAE2021-62241
View Paper titled, Mean Wave Drift Force on a Barge-Type Floating Wind Turbine With Moonpools
Open the PDF for Mean Wave Drift Force on a Barge-Type Floating Wind Turbine With Moonpools in another window
Topics: Floating wind turbines, Wave drift forces, Turbines, Vertical axis wind turbines, Waves, Yaw, Blades, Construction, Diffraction, Numerical analysis
Proceedings Papers

Scale and Configuration Effects of an Airchamber on PTO of Oscillating Water Column Type Wave Energy Converters

Tomoki Ikoma, Shota Hirai, Yasuhiro Aida, Koichi Masuda
Proc. ASME. OMAE2021, Volume 5: Ocean Space Utilization, V005T05A012, June 21–30, 2021
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2021-62173
https://doi.org/10.1115/OMAE2021-62173
View Paper titled, Scale and Configuration Effects of an Airchamber on PTO of Oscillating Water Column Type Wave Energy Converters
Open the PDF for Scale and Configuration Effects of an Airchamber on PTO of Oscillating Water Column Type Wave Energy Converters in another window
Topics: Oscillations, Water, Wave energy converters
Proceedings Papers

Experimental Study on the Stability Performance and Turning Motion of Multi-Connection VAWT

Saika Iwamatsu, Yasunori Nihei, Kazuhiro Iijima, Tomoki Ikoma, Tomoki Komori
Proc. ASME. OMAE2021, Volume 5: Ocean Space Utilization, V005T05A024, June 21–30, 2021
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2021-62662
https://doi.org/10.1115/OMAE2021-62662
View Paper titled, Experimental Study on the Stability Performance and Turning Motion of Multi-Connection VAWT
Open the PDF for Experimental Study on the Stability Performance and Turning Motion of Multi-Connection VAWT in another window
Topics: Mooring, Stability, Turning, Vertical axis wind turbines
Proceedings Papers

A Study on Performance Evaluation of Non-Reflective Boundary for Progressive Waves Reproduction Introduced in Numerical Wave Tank With MPS Method

Yasuhiro Aida, Tomotaka Takeo, Tomoki Ikoma, Koichi Masuda
Proc. ASME. OMAE2021, Volume 5: Ocean Space Utilization, V005T05A014, June 21–30, 2021
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2021-62364
https://doi.org/10.1115/OMAE2021-62364
View Paper titled, A Study on Performance Evaluation of Non-Reflective Boundary for Progressive Waves Reproduction Introduced in Numerical Wave Tank With MPS Method
Open the PDF for A Study on Performance Evaluation of Non-Reflective Boundary for Progressive Waves Reproduction Introduced in Numerical Wave Tank With MPS Method in another window
Topics: Particulate matter, Performance evaluation, Waves, Ocean engineering, Water, Absorption, Computer simulation, Energy dissipation, Position control, Reflection
Proceedings Papers

Study of Motion Performance of a Floating System With Four Moonpools and a VAWT

Lei Tan, Satsuya Moritsu, Tomoki Ikoma, Yasuhiro Aida, Koichi Masuda
Proc. ASME. IOWTC2021, ASME 2021 3rd International Offshore Wind Technical Conference, V001T01A001, February 16–17, 2021
Publisher: American Society of Mechanical Engineers
Paper No: IOWTC2021-3511
https://doi.org/10.1115/IOWTC2021-3511
View Paper titled, Study of Motion Performance of a Floating System With Four Moonpools and a VAWT
Open the PDF for Study of Motion Performance of a Floating System With Four Moonpools and a VAWT in another window
Topics: Vertical axis wind turbines
Proceedings Papers

Study on Applicability of FEMA Formula in Prediction of Impact Load by Tsunami Drifting Vessels on Coastal Zone Structures

Koichi Masuda, Tomoki Ikoma, Hiroaki Eto, Yasuhiro Aida, Kazuki Murata
Proc. ASME. OMAE2020, Volume 5: Ocean Space Utilization, V005T05A015, August 3–7, 2020
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2020-19088
https://doi.org/10.1115/OMAE2020-19088
View Paper titled, Study on Applicability of FEMA Formula in Prediction of Impact Load by Tsunami Drifting Vessels on Coastal Zone Structures
Open the PDF for Study on Applicability of FEMA Formula in Prediction of Impact Load by Tsunami Drifting Vessels on Coastal Zone Structures in another window
Topics: Collisions (Physics), FEMA, Shorelines, Stress, Tsunamis, Vessels
Proceedings Papers

Effects of Scale and Configuration of Air Chamber of OWC Type WECs on Air Chamber Characteristics

Tomoki Ikoma, Shota Hirai, Yasuhiro Aida, Koichi Masuda, Hiroaki Eto
Proc. ASME. OMAE2020, Volume 5: Ocean Space Utilization, V005T05A014, August 3–7, 2020
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2020-18762
https://doi.org/10.1115/OMAE2020-18762
View Paper titled, Effects of Scale and Configuration of Air Chamber of OWC Type WECs on Air Chamber Characteristics
Open the PDF for Effects of Scale and Configuration of Air Chamber of OWC Type WECs on Air Chamber Characteristics in another window
Topics: Design, Ducts, Manifolds, Oscillations, Potential theory (Physics), Pressure, Probes, Shapes, Turbines, Water
Proceedings Papers

Characteristics of OWC Type WEC Dampers Installed on a Very Large Floating Structure

Tomoki Ikoma, Shoichiro Furuya, Yasuhiro Aida, Koichi Masuda, Hiroaki Eto
Proc. ASME. OMAE2020, Volume 5: Ocean Space Utilization, V005T05A027, August 3–7, 2020
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2020-19002
https://doi.org/10.1115/OMAE2020-19002
View Paper titled, Characteristics of OWC Type WEC Dampers Installed on a Very Large Floating Structure
Open the PDF for Characteristics of OWC Type WEC Dampers Installed on a Very Large Floating Structure in another window
Topics: Dampers, Floating structures, Computational methods, Floating bodies, Oceans, Oscillations, Potential theory (Physics), Seawater, Water, Wave energy
Proceedings Papers

A Fundamental Study on Motion Characteristics of the Large-Scale Floating Coal Transshipment Station by Elastic Mooring Lines

Hiroaki Eto, Ryo Sekiguchi, Hitomi Kashima, Tomoki Ikoma, Yasuhiro Aida, Koichi Masuda
Proc. ASME. OMAE2020, Volume 5: Ocean Space Utilization, V005T05A025, August 3–7, 2020
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2020-18958
https://doi.org/10.1115/OMAE2020-18958
View Paper titled, A Fundamental Study on Motion Characteristics of the Large-Scale Floating Coal Transshipment Station by Elastic Mooring Lines
Open the PDF for A Fundamental Study on Motion Characteristics of the Large-Scale Floating Coal Transshipment Station by Elastic Mooring Lines in another window
Topics: Coal, Mooring, Tension, Floating bodies, Tides, Chain, Ocean engineering, Oscillations, Pacific Ocean, Piers (Structural)
Proceedings Papers

On GIS Based Selection of Suitable Site Including Cooperation With Surrounding Medical Facilities by Mesh Analysis of Floating Medical Support System on Big Disaster

Hiroaki Eto, Sena Shimomoto, Sachio Togawa, Morikazu Yamamoto, Shintaro Miyasawa, Junko Yamaguchi, Tomoki Ikoma, Yasuhiro Aida, Koichi Masuda, Hiroki Udagawa
Proc. ASME. OMAE2020, Volume 5: Ocean Space Utilization, V005T05A021, August 3–7, 2020
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2020-19026
https://doi.org/10.1115/OMAE2020-19026
View Paper titled, On GIS Based Selection of Suitable Site Including Cooperation With Surrounding Medical Facilities by Mesh Analysis of Floating Medical Support System on Big Disaster
Open the PDF for On GIS Based Selection of Suitable Site Including Cooperation With Surrounding Medical Facilities by Mesh Analysis of Floating Medical Support System on Big Disaster in another window
Topics: Biomedicine, Disasters, Earthquakes, Structures, Water, Damage, Rivers, Shorelines, Transportation systems, Cities
Proceedings Papers

A Fundamental Study on Plastic Strain Accompanying Deformation in Large-Scale Floating Coal Transshipment Station

Ryo Nishigochi, Hiroaki Eto, Koji Iizuka, Tomoki Ikoma, Yasuhiro Aida, Koichi Masuda
Proc. ASME. OMAE2020, Volume 5: Ocean Space Utilization, V005T05A026, August 3–7, 2020
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2020-18962
https://doi.org/10.1115/OMAE2020-18962
View Paper titled, A Fundamental Study on Plastic Strain Accompanying Deformation in Large-Scale Floating Coal Transshipment Station
Open the PDF for A Fundamental Study on Plastic Strain Accompanying Deformation in Large-Scale Floating Coal Transshipment Station in another window
Topics: Coal, Deformation, Breakwaters, Modeling, Stress, Stress concentration, Boundary-value problems, Floating bodies, Floating structures, Ocean engineering