Results 41 to 50 of about 15,758 (211)

Life analysis of helical gear sets using Lundberg-Palmgren theory [PDF]

open access: yes
A mathematical model is developed for surface fatigue life of helical gears. The expected fatigue life of a pinion, gear, or gear set may be calculated from the model. An equation for the dynamic capacity of a gear set was also derived.
Coy, J. J., Zaretsky, E. V.
core   +1 more source

3D Simulations of Relativistic Precessing Jets Probing the Structure of Superluminal Sources [PDF]

open access: yes, 2003
We present the results of a three-dimensional, relativistic, hydrodynamic simulation of a precessing jet into which a compact blob of matter is injected.
Ewald Müller   +8 more
core   +2 more sources

Geometric Modeling and Contact Characteristic Analysis of Hindley Worm and Cylindrical Helical Gear Transmission

open access: yesJixie chuandong, 2018
A kind of Hindley worm and cylindrical helical gear is presented. According to the geometrical parameters of Hindley worm,the geometric parameters of the helical gear with the Hindley worm is calculated,a three-dimensional model of Hindley worm and ...
Zhao Chaofei, Wei Bingyang
doaj  

Kinematic precision of gear trains [PDF]

open access: yes
Kinematic precision is affected by errors which are the result of either intentional adjustments or accidental defects in manufacturing and assembly of gear trains. A method for the determination of kinematic precision of gear trains is described.
Coy, J. J.   +3 more
core   +1 more source

APDL Modeling Method of Accurate Mesh Model of Helical Gear

open access: yesJixie chuandong, 2017
To solving the problem that it is difficult to build an accurate solid model of meshing helical gears in ANSYS,a new parameterized approach to building an accurate solid model of meshing helical gear based on APDL is presented. The solid model of helical
Tan Jun, Gao Defang, Yang Chao
doaj  

Study on Wear Mechanism of Helical Gear by Three-Body Abrasive Based on Impact Load. [PDF]

open access: yesMaterials (Basel), 2022
Yuan W   +6 more
europepmc   +1 more source

Topology of modified helical gears and Tooth Contact Analysis (TCA) program [PDF]

open access: yes
The contents of this report covers: (1) development of optimal geometries for crowned helical gears; (2) a method for their generation; (3) tooth contact analysis (TCA) computer programs for the analysis of meshing and bearing contact of the crowned ...
Litvin, Faydor L., Zhang, Jiao
core   +1 more source

Gearbox fault diagnosis under different operating conditions based on time synchronous average and ensemble empirical mode decomposition [PDF]

open access: yes, 2009
In this paper, a new method is proposed by combining ensemble empirical mode decomposition (EEMD) with order tracking techniques to analyse the vibration signals from a two stage helical gearbox.
Ball, A   +4 more
core  

基于UG二次开发的变位斜齿轮参数化建模研究

open access: yesJixie chuandong, 2014
The gear parametric modeling of the key issues is studied based on the generating method.With VC + +6.0programming tools,the 3dsoftware UG NX7.0secondary development,aparameterized module of gear is designed.The modified involute helical gear and all ...
付永涛   +4 more
doaj  

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