Results 11 to 20 of about 9,909,772 (235)
Stress shielding at the bone‐implant interface: Influence of surface roughness and of the bone‐implant contact ratio [PDF]
Journal of Orthopaedic Research, 2020 Short and long‐term stabilities of cementless implants are strongly determined by the interfacial load transfer between implants and bone tissue. Stress‐shielding effects arise from shear stresses due to the difference of material properties between bone
M. Raffa +4 more
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Machines, 2022 The dynamic characteristics and tooth spalling fault features are studied for the high-contact-ratio spur gear bearing system. The bending torsional dynamic model is proposed in this study for the gear bearing system with an ellipsoid spalling fault ...
Z. Cheng +3 more
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The analysis of contact ratio of involute internal beveloid gears with small tooth difference
Journal 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
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The method for synthesis of the contact ratio of noncircular bevel gears
, 2021 . As a type of spatial transmission mechanism, noncircular bevel gears can be used to transfer the power and motion with a variable transmission ratio between intersecting axes.
K. Shi, Shuai-Feng Lin, Yan’an Yao
semanticscholar +1 more source
High Mass Ratio Contact Binaries: Recent Evolution into Contact? [PDF]
International Astronomical Union Colloquium, 1989 Recent theories of the origin and evolution of contact binaries suggest that the two stars evolve into contact through angular momentum loss (AML; Mochnacki 1981, Vilhu 1982). When in contact, the system then evolves toward smaller mass ratio through mass transfer from the secondary to the primary component (Webbink 1976, Rahunen and Vilhu 1982).
openaire +2 more sources
Moment ratios for the pair-contact process with diffusion [PDF]
Physical Review E, 2006 17 pages, 5 ...
de Oliveira, Marcelo M., Dickman, Ronald
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Mass-ratio distribution of contact binary stars
Astronomy & Astrophysics, 2023 The mass ratioqof a contact binary star evolves through mass transfer, magnetic braking, and thermal relaxation oscillations to low values until it crosses a critical thresholdqmin. When this occurs, the binary undergoes the tidal Darwin instability, leading to a rapid coalescence of the components and to an observable brightening of the system.
Milan Pešta, Ondřej Pejcha
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Study of the tooth contact for high contact ratio spur gears with long tip relief [PDF]
MATEC 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
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The low mass ratio contact binary system V728 Herculis [PDF]
, 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
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Evaluation of Property Difference between Traction Oil and Traction Grease
Journal 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
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