Results 61 to 70 of about 2,255 (235)
Surface pitting fatigue life of noninvolute, low-contact-ratio gears [PDF]
Spur gear endurance tests were conducted to investigate the surface pitting fatigue life of noninvolute gears with low numbers of teeth and low contact ratios for use in advanced applications.
Townsend, Dennis P.
core +1 more source
Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.Abstract Ecosystem resilience, the ability to recover from disturbances, is crucial for sustaining ecosystem health and functionality. Traditional greenness‐based resilience measures often overlook early physiological stress. Here, we use solar‐induced chlorophyll fluorescence (SIF), an indicator for photosynthesis, to assess global vegetation ...
Subhrasita Behera +4 more
wiley +1 more source
Analysis of the Thermo-elastic for Involute Spur Gear Transmission with Logarithmic Modification
Jixie chuandong, 2015 Aiming at the involute spur gear with logarithmic modification,according to the heat conduction differential equation and the basic equations of thermo-elasticity,the thermal and thermo-elastic fields of involute spur gear at any meshing position are ...
Jin Tingting, Wang Jiugen, Wang Zhenrong
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Dynamic Capacity and Surface Fatigue Life for Spur and Helical Gears [PDF]
A mathematical model for surface fatigue life of gear, pinion, or entire meshing gear train is given. The theory is based on a previous statistical approach for rolling-element bearings. Equations are presented which give the dynamic capacity of the gear
Coy, J. J. +2 more
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Lubricant Jet Flow Phenomena in Spur and Helical Gears with Modified Addendums; for Radially Directed Individual Jets [PDF]
This paper develops the mathematical relations for the Virtual Kinetic Model as an improvement over the vectorial model developed earlier. The model solution described provides the most energy efficient means of cooling gears, i.e., it requires the least
Akin, Lee S., Townsend, Dennis P.
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Advances in Mechanical Engineering, 2017 Gears are one of the most crucial parts of power transmission systems in various industrial applications. Recently, there emerged a need to design gear drivers due to the rising performance requirements of various power transmission applications, such as
Fatih Karpat +3 more
doaj +1 more source
Predicted effect of dynamic load on pitting fatigue life for low-contact-ratio spur gears [PDF]
How dynamic load affects the surface pitting fatigue life of external spur gears was predicted by using the NASA computer program TELSGE. Parametric studies were performed over a range of various gear parameters modeling low-contact-ratio involute spur ...
Lewicki, David G.
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Influence of Tip Relief Profile Modification on Involute Spur Gear Stress
Transactions of FAMENA, 2016 This paper deals with the effects of linear tip profile modification on tooth root and tooth flank stress of involute spur gears. The increase in tooth flank stress due to tip profile modification is potentially hazardous due to increased risk of micro pitting initiation.
Marković, Kristina, Vrcan, Željko
openaire +4 more sources
THE LOGARITHMIC SPIRAL AND ITS SPHERICAL COUNTERPART
Journal of Industrial Design and Engineering Graphics, 2020 Logarithmic spirals are isogonal trajectories of pencils of lines. From a series of geometric consequences, we pick out a few which are relevant for kinematics: When a logarithmic spiral rolls on a line, its asymptotic point traces a straight line. Hence,
Hellmuth Stachel +2 more
doaj +2 more sources
Jixie qiangduThe relative curvature of the spur gear mesh point is one of the key geometric parameters of the tooth profile, which has a significant impact on the stress distribution and mesh stiffness of the gear.
CHEN Zhiwei, LIU Lei, KONG Rong
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