Find Research Outputs

Search concepts
Selected filters
2016

Experimental study on a 3-dimensional hydro-elastic deformation of "underwater platform" with multi-towers in waves

Haneda, K., Murai, M. & Yamanoi, J. 2016 Ocean Space Utilization; Ocean Renewable Energy. American Society of Mechanical Engineers (ASME), Vol. 6

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Experiments
Buoys
Elastic deformation
Offshore wind turbines
Mooring
2015

Comparison of weathervane performance between two types of FOWT systems moored to SPM

Iijima, K., Nihei, Y., Kuroda, Y. & Murai, M. 2015 Ocean Space Utilization. American Society of Mechanical Engineers (ASME), Vol. 6

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Single point mooring
Offshore wind turbines
Equations of motion
Mooring
Power generation

Coupled motion response of a moored floating body in breaking a mooring line in Waves

Murai, M. & Suyama, N. 2015 Proceedings of the International Offshore and Polar Engineering Conference. International Society of Offshore and Polar Engineers, Vol. 2015-January, p. 1453-1460 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Mooring
Hydrodynamics
Computer simulation

Experimental study on a motion of "underwater platform" including hydro-elastic deformation in waves

Murai, M., Yamanoi, J., Haneda, K. & Abe, Y. 2015 Ocean Space Utilization. American Society of Mechanical Engineers (ASME), Vol. 6

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Experiments
Offshore wind turbines
Elastic deformation
Computer simulation
Water
2 Citations

Hydrodynamic modelling of marine renewable energy devices: A state of the art review

Day, A. H., Babarit, A., Fontaine, A., He, Y. P., Kraskowski, M., Murai, M., Penesis, I., Salvatore, F. & Shin, H. K. 2015 Aug 24 In : Ocean Engineering. 108, p. 46-69 24 p.

Research output: Contribution to journalArticle

Ship model tanks
Hydrodynamics
Offshore wind turbines
Testing
Takeoff
2014

A comparative study of motion performance of four different FOWT designs in combined wind and wave loads

Nihei, Y., Iijima, K., Murai, M. & Ikoma, T. 2014 Jan 1 Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE. American Society of Mechanical Engineers (ASME), Vol. 7

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Offshore wind turbines
Single point mooring
Mooring
Maintainability
Wind turbines

Second-order resonance among an array of two rows of vertical circular cylinders

Kagemoto, H., Murai, M. & Fujii, T. 2014 Jan 1 In : Applied Ocean Research. 47, p. 192-198 7 p.

Research output: Contribution to journalArticle

Circular cylinders
2013

A study on non-linear response of moored floating body considering dynamic motion of mooring lines

Nonaka, K., Murai, M. & Nagamine, A. 2013 Dec 1 Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE. Vol. 3, V003T05A011

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Offshore structures
Mooring
Tension-leg platforms
Wind turbines

Conceptual design of a single-point-Moored FOWT and tank test for its motion characteristics

Iijima, K., Kawai, M., Nihei, Y., Murai, M. & Ikoma, T. 2013 Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE. Vol. 8, V008T09A079

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Offshore wind turbines
Single point mooring
Conceptual design
Wind turbines
Transfer functions

Designing process and motion characteristics of spar type offshore wind turbines

Nihei, Y., Ikoma, T., Kozen, M., Sato, F., Murai, M. & Iijima, K. 2013 Dec 1 Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE. Vol. 3, V003T05A025

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Offshore wind turbines
Mooring
Wind turbines
Gases
4 Citations

Dynamic interaction of parallel moving ships in close proximity

Islam, M. R. & Murai, M. 2013 Sep 1 In : Journal of Marine Science and Application. 12, 3, p. 261-271 11 p.

Research output: Contribution to journalArticle

Ships
Hydrodynamics
Froude number
Green's function

Investigations into motion characteristics of a multi-column type FOWT in waves and winds

Murai, M., Takei, M., Saeki, H., Nihei, Y., Iijima, K. & Ikoma, T. 2013 Dec 1 Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE. Vol. 3, V003T05A022

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Experiments

New design proposal for the TLP type offshore wind turbines

Nihei, Y., Matsuura, M., Murai, M., Iijima, K. & Ikoma, T. 2013 Dec 1 Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE. Vol. 3, V003T05A026

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Tension-leg platforms
Offshore wind turbines
Gases
Costs
Turbines
2012

Experimental investigation of the effects of a pulsating internal flow on the dynamics of a submersed U-shaped flexible pipe

Yamamoto, M., Uto, S., Fujiwara, T. & Murai, M. 2012 Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE. Vol. 3, p. 47-55 9 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Pipe
Experiments
Flow rate
Fluids
Dynamic response
2 Citations

Experimental validation for motion of spar-type floating wind turbine at inclination with effect of gyro moment of the rotating blade of windmill

Nur-E-Mostafa, M., Murai, M., Nishimura, R., Fujita, O. & Nihei, Y. 2012 Sep 17 Proceedings of the International Offshore and Polar Engineering Conference. p. 292-299 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Offshore wind turbines
Water tanks
Offshore structures
Snow
Wind turbines

Experiments on floating wave-power generation using piezoelectric elements and pendulums in the water tank

Okada, N., Yabe, S., Fujimoto, H. & Murai, M. 2012 Oct 1 Program Book - OCEANS 2012 MTS/IEEE Yeosu: The Living Ocean and Coast - Diversity of Resources and Sustainable Activities. 6263603

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Turbines
Wave power
Pendulums
Power generation
Water tanks
2011
1 Citations

An experimental analysis of a flexible riser in jumper configuration

Murai, M., Yamamoto, M., Uto, S. & Fujiwara, T. 2011 Dec 1 Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE. Vol. 4, p. 495-502 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hydrocarbons
Pipe
Experiments
Production platforms
Conveying
2010

An experimental analysis of the interaction between hanged pipe and internal flow

Yamamoto, M., Murai, M., Uto, S., Fujiwara, T., Kanada, S., Quadrante, L. A. R. & Haneda, K. 2010 Dec 1 Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE. PARTS A AND B ed. Vol. 5, p. 333-344 12 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Pipe
Fluids
Drilling
Liquids
Well drilling

A numerical analysis of the internal flow effect on the riser's mechanical behavior

Yamamoto, M. & Murai, M. 2010 Dec 1 Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE. PARTS A AND B ed. Vol. 5, p. 345-353 9 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Pipe
Flow of gases
Drilling
Computer simulation
Well drilling

A study on an experiment of behavior of a SPAR type offshore wind turbine considering rotation of wind turbine blades

Murai, M. & Nishimura, R. 2010 Nov 22 OCEANS'10 IEEE Sydney, OCEANSSYD 2010. 5603861

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electricity
Experiments
Offshore wind turbines
Water tanks
Mooring
1 Citations

A study on the optimization for the arrangement of two types of supporting columns for VLFS using GA

Nishi, T. & Murai, M. 2010 Dec 1 Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE. Vol. 3, p. 49-56 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Pontoons
Genetic algorithms
Airports
Computer simulation

Can a single floating body be expressed as the sum of two bodies?

Kagemoto, H., Murai, M. & Kashiwagi, M. 2010 Jul 26 In : Journal of Engineering Mathematics. 68, 2, p. 153-164 12 p.

Research output: Contribution to journalArticle

Hydrodynamics
Water
Aspect ratio
2009

An experimental study of the interaction between pipe structure and internal flow

Yamamoto, M., Murai, M., Maeda, K. & Uto, S. 2009 Dec 1 Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE. Vol. 3, p. 213-220 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Pipe
Flow of gases
Drilling
Well drilling
Offshore pipelines
1 Citations

Inclusive environmental assessment for offshore wind power stations

Murai, M. & Aono, T. 2009 Dec 1 Proceedings of the International Offshore and Polar Engineering Conference. p. 406-413 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wind power
Engineers

Inclusive environmental assessment for offshore wind power stations

Murai, M. & Aono, T. 2009 Dec 1 Proceedings of the International Offshore and Polar Engineering Conference.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wind power
2008

A study on an analysis of an annual change of distribution of short-necked clam in a tideland considering huge human impact

Murai, M., Funaki, Y. & Yamanaka, R. 2008 Sep 16 OCEANS'08 MTS/IEEE Kobe-Techno-Ocean'08 - Voyage toward the Future, OTO'08. 4531014

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Spatial distribution
Topography
Shellfish
Geology
Ecosystems