Results 1 to 10 of about 3,048,230 (136)

Real contact ratio and tooth bending stress calculation for plastic/plastic and plastic/steel spur gears

open access: yesMechanics & Industry, 2021
This paper presents an iterative method for calculating the effective contact ratio and the bending tooth stress for a pair of plastic/plastic and plastic/steel spur gears with an involute profile.
Jabbour Toni   +3 more
doaj   +1 more source

Investigation of Load Capacity of High-Contact-Ratio Internal Spur Gear Drive with Arc Path of Contact

open access: yesApplied Sciences, 2022
Tooth root bending stress and surface contact stress are two major determinants of the load carrying capacity of gear drives. Generally, a high contact ratio has the potential to enhance the gear strength.
Yanzhong Wang, Peng Liu, Delong Dou
doaj   +1 more source

The analysis of contact ratio of involute internal beveloid gears with small tooth difference

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2022
This paper proposes a calculation method for the contact ratio of internal beveloid gear pairs with small tooth number difference (IBGPSTND) based on the finite element method (FEM).
Guoshuai YAN   +4 more
doaj   +1 more source

High-contact ratio spur gears with conformal contact and reduced sliding

open access: yesResults in Engineering, 2022
The high-contact ratio (HCR) spur gear is a possible choice for a quiet and smooth gearing system. However, HCR spur gear of the involute type has several constraints, such as high sliding contact under large loads and interference problems in high speed
Ahmed W. Hussein, Mohammad Q. Abdullah
doaj   +1 more source

Small Mass Ratio Contact Binary [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2003
The contact binary system has been classified in five different types according to their physical properties.
Kyu-Dong Oh   +3 more
doaj   +1 more source

The low mass ratio contact binary system V728 Herculis [PDF]

open access: yes, 2015
We present the orbital period study and the photometric analys of the contact binary system V728 Her. Our orbital period analysis shows that the period of the system increases (dP/dt=1.92x10^-7dyr^-1) and the mass transfer rate from the less massive ...
Erkan, Naci, Ulas, Burak
core   +2 more sources

Evaluation of Property Difference between Traction Oil and Traction Grease

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2009
In this paper, the characteristics of traction grease are evaluated. The difference in film formation ability between traction oil and traction grease is focused on, and the state of film formation and the traction coefficient of traction oil and two ...
Masashi YAMANAKA   +3 more
doaj   +1 more source

Study of the tooth contact for high contact ratio spur gears with long tip relief [PDF]

open access: yesMATEC Web of Conferences, 2019
Profile modifications are commonly used to avoid shocks between meshing gear teeth produced by the delay of the driven gear, and the subsequent sooner start of contact, due to the teeth deflections.
Pedrero José I.   +2 more
doaj   +1 more source

Influence of the cylindrical gear pairs parameters to the transverse contact ratio

open access: yesVojnotehnički Glasnik, 2014
In the field of transmission and power transformation from the power engine to the working machine, gear pairs, are mostly used in mechanical engineering due to their compactness of the structure, high reliability and capacity.
Predrag S. Dobratić   +1 more
doaj   +1 more source

Effects of ITO Contact Sizes on Performance of Blue Light MicroLEDs

open access: yesNanoscale Research Letters, 2022
In this study, the effect of ITO contact ratio for blue light micro-light-emitting diode (µLED) with dimensions 40 μm × 40 μm was assessed. The contact ratio from 0.2 to 0.8 was designed for the ratio of electrode area to light-emitting area.
Yu-Hsuan Hsu   +4 more
doaj   +1 more source

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