Mass-ratio distribution of contact binary stars [PDF]
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
core +6 more sources
Study on Contact Ratio Calculation of Face Gear with Modification based on Gear Tooth Contact Analysis [PDF]
Jixie chuandong, 2015 The contact ratio is an important performance index of gear transmission,but there is no computational formula of contact ratio for complex tooth surface transmission,such as face gears.The definition of face gear contact ratio is given,and the method of
Dong Jianxiong, Tang Jinyuan
doaj +2 more sources
Design of Gear Transmission Contact Ratio Detection System [PDF]
Jixie chuandong, 2020 The wear and deformation of gear profile will change the contact ratio，which will affect the continuity and bearing capacity of gear transmission.
Rongxian Wang +4 more
doaj +2 more sources
Minimum mass ratio of contact binary stars [PDF]
, 2022 Mass ratio $q$ of a contact binary star evolves due to mass transfer, magnetic braking, and thermal relaxation oscillations to small values until it crosses a critical threshold $q_\text{min}$. When that happens, the binary undergoes the tidal Darwin instability leading to a rapid coalescence of the components and observable brightening of the system ...
Milan Pešta, Ondřej Pejcha
openaire +2 more sources
Tooth-root-stress evaluation for plastic gears considering effect of contact ratio under load [PDF]
Journal of Advanced Mechanical Design, Systems, and ManufacturingIn a plastic gear pair, the low rigidity of plastics can lead to a higher actual contact ratio due to tooth deflection under load compared to the geometrical one. This phenomenon contributes to a decrease in tooth root stress.
Ichiro MORIWAKI, Akio UEDA, Takao KOIDE
doaj +2 more sources
Breccia characteristics and classification of the GW orebodies, Balatoc Diatreme, Philippines: Insights to breccia facies and distribution across diatremes [PDF]
, 2022 A careful descriptive characterization of breccias, including diatremes, is useful for comparative purposes during exploration, rather than the colloquial use of various breccia terminology in ore exploration.
Gabo‐Ratio, Jillian Aira +1 more
core +1 more source
Study on the Influence of Real Contact Ratio on Gear Meshing Stiffness and Dynamic Response [PDF]
Jixie chuandong, 2018 In order to research the influence of real contact ratio on meshing stiffness and gear dynamic response,the gear meshing assembly model is constructed via the 3 D modeling software SolidWorks,and the model is put into the transient module of FEA software
He Yumin, Hao Anbang
doaj +2 more sources
An experimental method to measure gear tooth stiffness throughout and beyond the path of contact [PDF]
, 2001 A method is presented that allows the accurate measurement of the tooth pair stiffness of a pair of spur gears. The method reveals the stiffness behaviour throughout the full length of the normal path of contact and also into the extended contact region ...
Munro, R. G. +2 more
core +1 more source
The use of high aspect ratio photoresist (SU-8) for super-hydrophobic pattern prototyping [PDF]
, 2004 In this work we present a reliable technique for the production of large areas of high aspect-ratio patterns and describe their use as model super-hydrophobic systems.
Aqil, Sanaa +13 more
core +1 more source
The Influence of Wheel/Rail Contact Conditions on the Microstructure and Hardness of Railway Wheels [PDF]
, 2014 The susceptibility of railway wheels to wear and rolling contact fatigue damage is influenced by the properties of the wheel material (microstructure and hardness).
Bevan, Adam +5 more
core +1 more source