Results 71 to 80 of about 179,529 (193)

Flex-Gears [PDF]

open access: yes
Flex-Gears are being developed as an alternative to brushes and slip rings to conduct electricity across a rotating joint. Flex-Gears roll in the annulus of sun and ring gears for electrical contact while maintaining their position by using a novel ...
Peritt, Jonathan, Tsai, Lung-Wen
core   +1 more source

Electromechanical rotary actuator operates over wide temperature range [PDF]

open access: yes, 1969
Electromechanical rotary actuator, which operates over wide temperature range, contains a spring stop which has been calculated to limit internal deceleration loads to a magnitude equal to stall torque.
Sullivan, S. F.
core   +1 more source

Assessment of Depth Contact Endurance of Surface-Hardened Gears

open access: yesМеханика машин, механизмов и материалов
The main factors determining the performance of highly stressed surface-hardened gears of transmissions of energy-consuming machines are the parameters of a hardened layer, especially the behavior of hardness distribution over its thickness. The existing
Sergei P. Rudenko   +2 more
doaj   +1 more source

Application of Face-Gear Drives in Helicopter Transmissions [PDF]

open access: yes
The use of face gears in helicopter transmissions was explored. A light-weight, split torque transmission design utilizing face gears was described. Face-gear design and geometry were investigated.
Bossler, R. B., Jr.   +5 more
core   +1 more source

Directional gear ratio transmissions [PDF]

open access: yes, 1984
Epicyclic gear transmissions which transmit output at a gear ratio dependent only upon the input's direction are considered. A transmission housing envelops two epicyclic gear assemblies, and has shafts extending from it.
Lafever, A. E.
core   +1 more source

A general formulation of Bead Models applied to flexible fibers and active filaments at low Reynolds number

open access: yes, 2015
This contribution provides a general framework to use Lagrange multipliers for the simulation of low Reynolds number fiber dynamics based on Bead Models (BM). This formalism provides an efficient method to account for kinematic constraints. We illustrate,
Climent, Eric   +2 more
core   +1 more source

Spiral bevel and circular arc helical gears: Tooth contact analysis and the effect of misalignment on circular arc helical gears [PDF]

open access: yes
A computer aided method for tooth contact analysis was developed and applied. Optimal machine-tool settings for spiral bevel gears are proposed and when applied indicated that kinematic errors can be minimized while maintaining a desirable bearing ...
Coy, J. J.   +4 more
core   +1 more source

Surface fatigue life of M50NiL and AISI 9310 spur gears and R C bars [PDF]

open access: yes
Spur gear endurance tests and rolling element surface fatigue tests were conducted to study vacuum induction melted, vacuum arc remelted (VIM-VAR) M50NiL steel for use as a gear steel in advanced aircraft applications, to determine its endurance ...
Bamberger, Eric N., Townsend, Dennis P.
core   +1 more source

A temperature rise calculation model of wind turbine gearbox gear considering crack fault and tooth number difference

open access: yesIET Renewable Power Generation
The crack fault of gear is usually accompanied by temperature rise. Therefore, to master the temperature characteristics of the cracked gear of the wind turbine gearbox, a temperature rise calculation model of wind turbine gearbox gear considering crack ...
Shiyu Lin   +4 more
doaj   +1 more source

Run-in with chemical additive protects gear surface [PDF]

open access: yes, 1966
Run-in treatment provides a protective coating on turbopump gear surfaces so that they are capable of operation under marginal conditions in mineral oil and diester lubricants.
Hartman, M. A.
core   +1 more source

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