Results 41 to 50 of about 9,909,772 (235)

Selection of Pressure Angle based on Dynamic Effects in Asymmetric Spur Gear with Fixed Normal Contact Ratio

open access: yesDefence Science Journal, 2019
Asymmetric spur gears are finding application in many fields including aerospace propulsion and automobile which demand unidirectional or relatively higher load on one side of the gear flank.
Benny Thomas   +3 more
semanticscholar   +1 more source

Study of interfacial stiffness ratio of a rough surface in contact using a spring model [PDF]

open access: yes, 2010
This study proposes the use of a simple spring model that relates the interfacial stiffness with the complex reflection coefficient of ultrasound in a rough contact.
A. Baltazar   +36 more
core   +1 more source

Mobility Increases the Data Offloading Ratio in D2D Caching Networks

open access: yes, 2017
Caching at mobile devices, accompanied by device-to-device (D2D) communications, is one promising technique to accommodate the exponentially increasing mobile data traffic.
Letaief, K. B.   +3 more
core   +1 more source

Effect of solid thermal conductivity and particle-particle contact on effective thermodiffusion coefficient in porous media [PDF]

open access: yes, 2011
Transient mass transfer associated to a thermal gradient through a saturated porous medium is studied experimentally and theoretically to determine the effect of solid thermal conductivity and particle-particle contact on thermodiffusion processes.
Davarzani, Hossein   +2 more
core   +3 more sources

Effect of contact angle and helix angle on slide-roll ratio under the uniform motion state of BSM

open access: yesMATEC Web of Conferences, 2017
To study the effect of contact and helix angles on slide-roll ratio at the ball contact point under the uniform motion state of ball screw mechanism (BSM), a slide- roll ratio model was derived in the literature [9] were used in this paper.
Deshun Kong, Min Wang, Xiangsheng Gao
doaj   +1 more source

CCD photometric study of the W UMa-type binary II CMa in the field of Berkeley 33

open access: yes, 2011
The CCD photometric data of the EW-type binary, II CMa, which is a contact star in the field of the middle-aged open cluster Berkeley 33, are presented. The complete R light curve was obtained.
Jia, Zhao   +7 more
core   +1 more source

The critical mass ratio for W UMa-type contact binary systems [PDF]

open access: yesSerbian Astronomical Journal
Contact binaries are close binary systems in which both components fill their inner Roche lobes so that the stars are in direct contact, and in potential mass and energy exchange.
Arbutina Bojan, Wadhwa Surjit
doaj   +1 more source

A method for static and dynamic load analysis of standard and modified spur gears [PDF]

open access: yes, 1983
The mesh stiffness and dynamic load characteristics for several cases of the Normal Contract Ratio and High Contact ratio gearing. The considered contact ratios were grouped in the general range of 1.7,2.0, and 2.3.
Kasuba, R.
core   +1 more source

Research on Key Factors of Sealing Performance of Combined Sealing Ring

open access: yesApplied Sciences, 2022
In this study, the mechanical properties of a combined seal ring under different loads were numerically calculated using ANSYS. The effect of the working pressure and pre-compression ratio of a rubber O-ring on the contact stress of the combined seal ...
Heming Cheng   +3 more
doaj   +1 more source

Dynamic tooth loads and stressing for high contact ratio spur gears [PDF]

open access: yes, 1983
An analysis and computer program were developed for calculating the dynamic gear tooth loading and root stressing for high contact ratio gearing (HCRG) as well as LCRG.
Cornell, R. W., Westervelt, W. W.
core   +1 more source

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