Results 211 to 220 of about 7,662 (263)
RWD-DOF: a dual-degree-of-freedom reconfigurable wheel design for improved robotic mobility. [PDF]
Sci RepLiu Y, Wei Y, Feng T, Wang C, Wu H.
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Design, development, and validation of a non-backdrivable active ankle-foot orthosis for the TWIN lower-limb exoskeleton. [PDF]
Front Robot AIGiannattasio R +6 more
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Investigation of Isotropic Superfinishing Effects on Ground Hypoid Gears
Volume 11: 2023 International Power Transmission and Gearing Conference (PTG), 2023Abstract Isotropic superfinishing has been demonstrated by many studies that it can have positive influence on friction/heat reduction and surface fatigue life improvement for sliding/rolling contact elements such as bearings and gears. However, superfinished gears are still not widely used in automotive transmissions and axles.
Hai Xu, Jeff Heaton
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Influence of Landing-Gear Design on Helicopter Ground Resonance
Canadian Aeronautics and Space Journal, 1999The influence of landing-gear design on a ground-resonance phenomenon is investigated with the aid of finite-element software.
I. Sharf, L. Monterrubio
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Suppression of ground resonance in rotorcraft using active landing gear
Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 2021This article examines the fundamental aspects of controlling ground resonance in rotorcraft equipped with actively controlled landing gear. Ground resonance is a mechanical instability affecting rotorcraft on the ground. It occurs at certain rotor speeds, where the lead–lag motion of the rotor couples with the motion of fuselage creating a self ...
Arjun Krishnan +2 more
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In situ running-in analysis of ground gears
Wear, 2016The initial contact state between two interacting gears proves of interest due to empirical evidence indicating difference in life and efficiency in the long term due to the initial operation. Presented here is an analysis of the initial contact state of spur gears, made of case carburized 16MnCr5 steel, by the use of in situ surface measurements and ...
M. Sosa +3 more
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Control of rotorcraft landing gear on different ground conditions
2016 IEEE International Conference on Mechatronics and Automation, 2016This paper presents an example of a PID controller applied to a 2-dimensional rotorcraft landing gear with two DOF (degrees of freedom), as well as the design of the landing gear dynamic model. The focus of this work is to maintain the landing spot to prevent the landing gear from skidding sideways on the ground, while adapting to different ground ...
Keng Goh +3 more
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Ground Gears and Transmission Design
SAE Technical Paper Series, 1928<div class="htmlview paragraph"><b>G</b>ROUND teeth for transmission gears are advocated because they can be made to the same degree of accuracy as the other fine working-parts of a motor-car.</div> <div class="htmlview paragraph">The designing engineer is held responsible for conditions unfavorable to the adoption of gear
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OIL-TREATED STEEL AND GROUND GEARS
SAE Technical Paper Series, 1924<div class="htmlview paragraph">The Cadillac Company has used S.A.E. 3250 steel for at least 8 years. This is medium nickel-chromium steel. Many other kinds have also been tried. Experience has shown that transmission gears made of carburized steel are not within 30 per cent as accurate as those made of oil-treated steel.
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Technical and economic feasibility of low ground pressure running gear
Soil and Tillage Research, 1995Abstract To reduce the environmental impact of traffic-induced overcompaction of soils, on-farm solutions are needed. The use of low ground pressure field traffic systems is a rational way to manage soil compaction. The adoption of such systems by farmers strongly depends on their technical feasibility and the costs involved in their implementation ...
Tijink, F.G.J. +2 more
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