Results 111 to 120 of about 78,488 (248)

Contra-rotating marine current turbines : single point tethered floating system - stabilty and performance [PDF]

open access: yes, 2009
The Energy Systems Research Unit within the Department of Mechanical Engineering at the University of Strathclyde has developed a novel contra-rotating tidal turbine (CoRMaT). A series of tank and sea tests have led to the development and deployment of a
Clarke, Joseph Andrew   +4 more
core  

Growth of Subsurface Fatigue Fractures in Large‐Size Bevel Gears

open access: yesFatigue &Fracture of Engineering Materials &Structures, Volume 49, Issue 2, Page 640-652, February 2026.
ABSTRACT Large‐size bevel gears are commonly used in marine industry for the applications of propulsion, such as azimuth thrusters. The gears are typically designed for specific use, as they are directly transferring power from one component to another.
Erkka Pentti Kasper Virtanen   +4 more
wiley   +1 more source

Fundamental study of flow field generated by rotorcraft blades using wide-field shadowgraph [PDF]

open access: yes
The vortex trajectory and vortex wake generated by helicopter rotors are visualized using a wide-field shadowgraph technique. Use of a retro-reflective Scotchlite screen makes it possible to investigate the flow field generated by full-scale rotors.
Back, L. H.   +2 more
core   +1 more source

Nonmagnetic, explosive actuated indexing device Patent [PDF]

open access: yes, 1967
Development of non-magnetic indexing device for orienting magnetic flux sensing instrument in magnetic field without generation of detrimental magnetic ...
Bauernschub, J. P., Jr.
core   +1 more source

Index to NASA Tech Briefs, January - June 1966 [PDF]

open access: yes, 1966
Index to NASA technological innovations for January-June ...

core   +1 more source

Parametric effects on dryout of propane in a vertical circular mini-channel [PDF]

open access: yes, 2011
This paper was presented at the 3rd Micro and Nano Flows Conference (MNF2011), which was held at the Makedonia Palace Hotel, Thessaloniki in Greece.
3rd Micro and Nano Flows Conference (MNF2011)   +3 more
core  

Development of a high power microwave thruster, with a magnetic nozzle, for space applications [PDF]

open access: yes
This paper describes the current development of a high-power microwave electrothermal thruster (MET) concept at the NASA Lewis Research Center. Such a thruster would be employed in space for applications such as orbit raining, orbit maneuvering, station ...
Chapman, Randall A., Power, John L.
core   +1 more source

Bearing and gimbal lock mechanism and spiral flex lead module Patent [PDF]

open access: yes, 1971
Low friction bearing and lock mechanism for two-axis gimbal carrying satellite ...
Lloyd, W. B.
core   +1 more source

Analysis of a coaxial magnetic gear optimally designed using Particle Swarm Optimization

open access: yesMansoura Engineering Journal
One important key to improve the ef fi ciency of adjustable speed drives is using magnetic gears due to their advantages in comparison to their mechanical counterparts.
Yasser Kassab   +2 more
semanticscholar   +1 more source

Experimental Verification of an Axially-Differential Magnetic-Geared Motor

open access: yesJournal of the Japan Society of Applied Electromagnetics and Mechanics, 2021
Takafumi MIYAKE   +5 more
openaire   +2 more sources

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