Department of Marine Systems Engineering

Research Output 1977 2020

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Article
2020
Stress intensity factors
Cracks
Finite element method
2019

A study on the platform-pitching vibration of floating offshore wind turbines based on classical control theory

Kakuya, H., Yoshida, S., Sato, I. & Utsunomiya, T., Jan 1 2019, (Accepted/In press) In : Wind Engineering.

Research output: Contribution to journalArticle

Offshore wind turbines
Vibration control
Control theory
Transfer functions
Bode diagrams

Automatic track keeping to realize the realistic operation of a ship

Choe, B. & Furukawa, Y., Jan 1 2019, In : International Journal of Fuzzy Logic and Intelligent Systems. 19, 3, p. 172-182 11 p.

Research output: Contribution to journalArticle

Open Access
Ship
Ships
Switching Systems
Switching systems
Overshoot

Axial compressive residual ultimate strength of circular tube after lateral collision

Li, R., Yanagihara, D. & Yoshikawa, T., Jan 1 2019, In : International Journal of Naval Architecture and Ocean Engineering. 11, 1, p. 396-408 13 p.

Research output: Contribution to journalArticle

Axial compression
Load limits
Compressive stress
Application programming interfaces (API)
Plastic deformation

Buckling and collapse analysis of a cracked panel under a sequence of tensile to compressive load employing a shell-solid mixed finite element modeling

Tanaka, S., Sujiatanti, S. H., Setoyama, Y., Yu, J., Yanagihara, D. & Pei, Z., Oct 1 2019, In : Engineering Failure Analysis. 104, p. 987-1001 15 p.

Research output: Contribution to journalArticle

Buckling
Cracks
Steel
Crack tips
Aspect ratio
4 Citations (Scopus)

Numerical modeling and analysis of a hybrid-spar floating wind turbine

Utsunomiya, T., Sato, I., Kobayashi, O., Shiraishi, T. & Harada, T., Jun 1 2019, In : Journal of Offshore Mechanics and Arctic Engineering. 141, 3, 031903.

Research output: Contribution to journalArticle

Wind turbines
Precast concrete
Prestressed concrete
Numerical analysis
Numerical models
Offshore wind turbines
Demonstrations
Torque
Vibration control
Speed control
Open Access
Ocean thermal energy conversion
Pipe
Water
Seawater
Fiber reinforced plastics
2018
10 Citations (Scopus)

A new method to estimate ultimate strength of stiffened panels under longitudinal thrust based on analytical formulas

Ozdemir, M., Ergin, A., Yanagihara, D., Tanaka, S. & Yao, T., May 2018, In : Marine Structures. 59, p. 510-535 26 p.

Research output: Contribution to journalArticle

Buckling
Finite element method
Residual stresses
Welding
7 Citations (Scopus)

Estimated of energy saving from the application of roof shade on the refrigerated container storage yard

Budiyanto, M. A., Shinoda, T., Sunaryo, Nugroho, F. A. & Wibowo, B., Jun 1 2018, In : Journal of Advanced Research in Fluid Mechanics and Thermal Sciences. 46, 1, p. 114-121 8 p.

Research output: Contribution to journalArticle

Refrigerated containers
Roofs
Energy conservation
Containers
Energy utilization
3 Citations (Scopus)

Experimental results of floating platform vibration control with mode change function using full-scale spar-type floating offshore wind turbine

Kakuya, H., Shiraishi, T., Yoshida, S., Utsunomiya, T. & Sato, I., Jun 1 2018, In : Wind Engineering. 42, 3, p. 230-242 13 p.

Research output: Contribution to journalArticle

Offshore wind turbines
Vibration control
Vibrations (mechanical)
Speed control
Bandpass filters
5 Citations (Scopus)

The effect of solar radiation on the energy consumption of refrigerated container

Budiyanto, M. A. & Shinoda, T., Sep 1 2018, In : Case Studies in Thermal Engineering. 12, p. 687-695 9 p.

Research output: Contribution to journalArticle

Refrigerated containers
Solar radiation
Energy utilization
Containers
Refrigeration
2017
4 Citations (Scopus)

A study on the angular distortion in tee type full penetrated welded joint fabricated by the laser-arc hybrid welding

Tsumura, S., Murakami, K. & Gotoh, K., Dec 2 2017, In : Welding International. 31, 12, p. 911-919 9 p.

Research output: Contribution to journalArticle

Welding
Welds
Lasers
Electric arc welding
Gas welding
21 Citations (Scopus)

Buckling analysis of stiffened plate structures by an improved meshfree flat shell formulation

Sadamoto, S., Tanaka, S., Taniguchi, K., Ozdemir, M., Bui, T. Q., Murakami, C. & Yanagihara, D., Aug 1 2017, In : Thin-Walled Structures. 117, p. 303-313 11 p.

Research output: Contribution to journalArticle

Buckling
Stiffness matrix
Flanges
Drilling
Boundary conditions
1 Citation (Scopus)

Finite element modeling and ultimate strength evaluation for cracked plates

Setoyama, Y., Tanaka, S., Yanagihara, D. & Murakami, C., Oct 17 2017, In : Transactions of the Japan Society for Computational Engineering and Science. 2017, 20170014.

Research output: Contribution to journalArticle

Buckling
Cracks
Crack closure
Axial compression
19 Citations (Scopus)

Internal flow effect on the cross-flow vortex-induced vibration of a cantilevered pipe discharging fluid

Meng, S., Kajiwara, H. & Zhang, W., Jan 1 2017, In : Ocean Engineering. 137, p. 120-128 9 p.

Research output: Contribution to journalArticle

Vortex flow
Pipe
Fluids
Flow velocity
Fluid structure interaction
9 Citations (Scopus)

Meshfree flat-shell formulation for evaluating linear buckling loads and mode shapes of structural plates

Yoshida, K., Sadamoto, S., Setoyama, Y., Tanaka, S., Bui, T. Q., Murakami, C. & Yanagihara, D., Sep 1 2017, In : Journal of Marine Science and Technology (Japan). 22, 3, p. 501-512 12 p.

Research output: Contribution to journalArticle

buckling
Buckling
shell
Galerkin method
Value engineering
Fatigue crack propagation
Stress intensity factors
Structural integrity
Fracture mechanics
Fatigue of materials
7 Citations (Scopus)

Stack effect on power consumption of refrigerated containers in storage yards

Budiyanto, M. A. & Shinoda, T., Dec 1 2017, In : International Journal of Technology. 8, 7, p. 1182-1190 9 p.

Research output: Contribution to journalArticle

Refrigerated containers
Electric power utilization
Thermocouples
Containers
Energy utilization
5 Citations (Scopus)

Tidal resource and interactions between multiple channels in the Goto Islands, Japan

Waldman, S., Yamaguchi, S., O'Hara Murray, R. & Woolf, D., Sep 1 2017, In : International Journal of Marine Energy. 19, p. 332-344 13 p.

Research output: Contribution to journalArticle

resource
energy
Turbines
turbine
strait
2016
Welding
Lasers
Shipyards
Risk assessment
Accidents
Mobile devices
Hazards
2015
2 Citations (Scopus)
Welding
Welds
Lasers
Electric arc welding
Gas welding
3 Citations (Scopus)

Buckling phenomenon for imperfect pipe under pure bending

Yudo, H. & Yoshikawa, T., Dec 1 2015, In : Schmerz. 29, 6, p. 703-710 8 p.

Research output: Contribution to journalArticle

Plastics
9 Citations (Scopus)

Buckling phenomenon for straight and curved pipe under pure bending

Yudo, H. & Yoshikawa, T., Jan 1 2015, In : Journal of Marine Science and Technology (Japan). 20, 1, p. 94-103 10 p.

Research output: Contribution to journalArticle

buckling
Buckling
pipe
Pipe
Bending moments

Comprehensive study of structural integrity of non-load-carrying fillet-welded joint effect with large gap size

Abdullah, E., Gotoh, K. & Deguchi, J., Dec 1 2015, In : Journal of Marine Science and Technology (Japan). 20, 4, p. 752-764 13 p.

Research output: Contribution to journalArticle

welding
Structural integrity
Welds
fatigue
Fatigue of materials
6 Citations (Scopus)

Numerical simulation of fatigue crack propagation under biaxial tensile loadings with phase differences

Gotoh, K., Niwa, T. & Anai, Y., Jun 1 2015, In : Marine Structures. 42, p. 53-70 18 p.

Research output: Contribution to journalArticle

Fatigue crack propagation
Computer simulation
Fracture mechanics
Plastics
Structural integrity
1 Citation (Scopus)
Fatigue crack propagation
Computer simulation
Fatigue damage
Plastics
Fracture mechanics
2014
16 Citations (Scopus)

Dynamic analysis of a floating offshore wind turbine under extreme environmental conditions

Utsunomiya, T., Yoshida, S., Ookubo, H., Sato, I. & Ishida, S., Mar 24 2014, In : Journal of Offshore Mechanics and Arctic Engineering. 136, 2, 020904.

Research output: Contribution to journalArticle

Offshore wind turbines
Dynamic analysis
Vortex flow
Spar platforms
Mooring

Numerical simulation of fatigue crack propagation

Gotoh, K., Jan 1 2014, In : Yosetsu Gakkai Shi/Journal of the Japan Welding Society. 83, 7, p. 544-548 5 p.

Research output: Contribution to journalArticle

Fatigue crack propagation
Computer simulation
4 Citations (Scopus)

Optimization of energy saving device combined with a propeller using real-coded genetic algorithm

Ryu, T., Kanemaru, T., Kataoka, S., Arihama, K., Yoshitake, A., Arakawa, D. & Ando, J., Jan 1 2014, In : International Journal of Naval Architecture and Ocean Engineering. 6, 2, p. 406-417 12 p.

Research output: Contribution to journalArticle

Propellers
Energy conservation
Genetic algorithms
Cambers
Normal distribution
2013
11 Citations (Scopus)

Application of pull concept-based lean production system in the ship building industry

Hassan, K. & Kajiwara, H., Aug 1 2013, In : Journal of Ship Production and Design. 29, 3, p. 105-116 12 p.

Research output: Contribution to journalArticle

Ships
Shipyards
Industry
Shipbuilding
Lean production
15 Citations (Scopus)

Fracture control of extremely thick welded steel plates applied to the deck structure of large container ships

Sumi, Y., Yajima, H., Toyosada, M., Yoshikawa, T., Aihara, S., Gotoh, K., Ogawa, Y., Matsumoto, T., Hirota, K., Hirasawa, H., Toyoda, M. & Morikage, Y., Dec 1 2013, In : Journal of Marine Science and Technology (Japan). 18, 4, p. 497-514 18 p.

Research output: Contribution to journalArticle

container ship
crack propagation
Containers
Ships
steel
2 Citations (Scopus)
Propellers
Numerical analysis
Ships
cavity
hull
Energy absorption
Railroad cars
Crashworthiness
Rails
2011
8 Citations (Scopus)

Fatigue crack growth behaviour of A5083 series aluminium alloys and their welded joints

Gotoh, K., Murakami, K. & Noda, Y., Sep 1 2011, In : Journal of Marine Science and Technology. 16, 3, p. 343-353 11 p.

Research output: Contribution to journalArticle

Fatigue crack propagation
fatigue
Aluminum alloys
Welds
crack

メタンハイドレート掘削用浮体の技術的課題

Translated title of the contribution: Technical Issues of Floating Structure for drilling Methane HydrateYoshikawa, T., Sasaki, K. & Miyake, R., Nov 2011, In : 日本船舶海洋工学会講演会論文集. 13, p. 125-128 4 p.

Research output: Contribution to journalArticle

2009

A unified motion planning method for a multifunctional underwater robot

Shiraishi, K. & Kimura, H., Dec 1 2009, In : Artificial Life and Robotics. 14, 3, p. 405-409 5 p.

Research output: Contribution to journalArticle

Motion planning
Robots
Dynamic programming
Markov Chains
Explosions

Fatigue strength of welded joints

Gotoh, K., Oct 1 2009, In : Yosetsu Gakkai Shi/Journal of the Japan Welding Society. 78, 7, p. 45-49 5 p.

Research output: Contribution to journalArticle

Welds
Fatigue strength
4 Citations (Scopus)
fatigue
Crack initiation
Crack propagation
Welds
crack
3 Citations (Scopus)
flapping
Hydroelectric power
wings
Power generation
electric motors
2008

Development of numerical simulation of fatigue crack growth

Gotoh, K., Jun 2008, In : Yosetsu Gakkai Shi/Journal of the Japan Welding Society. 77, 4, p. 9-13 5 p.

Research output: Contribution to journalArticle

Fatigue crack propagation
Computer simulation
1 Citation (Scopus)

Heaving response of a large floating platform

Wang, C. M., Utsunomiya, T. & Koh, H. S., May 2008, In : IES Journal Part A: Civil and Structural Engineering. 1, 2, p. 97-105 9 p.

Research output: Contribution to journalArticle

Damping
Radiation
Laplace equation
Green's function
Boundary value problems
3 Citations (Scopus)

Maximum output power control system of variable-speed small wind generators

Amano, Y. & Kajiwara, H., Oct 1 2008, In : Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi). 165, 1, p. 9-17 9 p.

Research output: Contribution to journalArticle

Power control
AC generators
Control systems
Field effect transistors
Heat losses
24 Citations (Scopus)

Motion analysis of a floating offshore wind turbine considering rotor-rotation

Matsukuma, H. & Utsunomiya, T., Nov 2008, In : IES Journal Part A: Civil and Structural Engineering. 1, 4, p. 268-279 12 p.

Research output: Contribution to journalArticle

Offshore wind turbines
Rotors
Turbomachine blades
System theory
Global warming
2007
4 Citations (Scopus)

An extension of the rational policy making algorithm to continuous state spaces

Miyazaki, K., Kimura, H. & Kobayashi, S., Jan 1 2007, In : Transactions of the Japanese Society for Artificial Intelligence. 22, 3, p. 332-341 10 p.

Research output: Contribution to journalArticle

Reinforcement learning
Learning systems
Profitability
1 Citation (Scopus)

Maximum output power control system of variable-speed small wind generators

Amano, Y. & Kajiwara, H., Apr 13 2007, In : IEEJ Transactions on Power and Energy. 127, 4

Research output: Contribution to journalArticle

Power control
AC generators
Control systems
Field effect transistors
Brakes
2006

Development of automatic position-adjustable elevator for workboat

Nakamura, M. & Kajiwara, H., Sep 1 2006, In : International Journal of Offshore and Polar Engineering. 16, 3, p. 202-209 8 p.

Research output: Contribution to journalArticle

Elevators
Ocean structures
Image processing
Experiments
4 Citations (Scopus)

Non-periodic motions and fractals of a circular arch under follower forces with small disturbances

Fukuchi, N. & Tanaka, T., Apr 2006, In : Steel and Composite Structures. 6, 2, p. 87-101 15 p.

Research output: Contribution to journalArticle

Arches
Fractals
Hydrostatic pressure
Power spectrum
Membranes
2005
1 Citation (Scopus)

Reinforcement learning by GA using importance sampling

Tsuchiya, C., Kimura, H., Sakuma, J. & Kobayashi, S., May 24 2005, In : Transactions of the Japanese Society for Artificial Intelligence. 20, 1, p. 1-10 10 p.

Research output: Contribution to journalArticle

Importance sampling
Reinforcement learning
Genetic algorithms
Gradient methods
Costs