Results 11 to 20 of about 60,618 (302)

Key Technology and Experimental Study of Unequal Pitches Meshing between Metal Worm and Plastic Helical Gears

open access: yesApplied Sciences, 2020
In traditional gear design, the design theory is based on a rigid hypothesis and is popularly adopted in the preparation of metal gear. Plastic gear designing lacks a mature design theory.
Zhaoyao Shi   +3 more
doaj   +1 more source

Numerical simulation of three-phase flow in an external gear pump using immersed boundary approach [PDF]

open access: yes, 2019
This paper presents a three-phase fully compressible model applied along with an immersed boundary model for predicting cavitation occurring in a two dimensional gear pump in the presence of non-condensable gas (NCG).
Gavaises, M.   +3 more
core   +1 more source

MESHING THEORY ANALYSIS OF THE MODIFIED ROLLER ENVELOPING HOURGLASS WORM DRIVE

open access: yesJixie qiangdu, 2022
Based on the modification of the single-roller-enveloped toroidal meshing worm drive, a parabolic modified roller-enveloped toroidal meshing worm drive is obtained.
QI Yan   +4 more
doaj  

Meshing theory of axial arc tooth profile cylindrical worm drive

open access: yesAdvances in Mechanical Engineering, 2021
In this paper, the axial arc tooth profile cylindrical worm drive is proposed, whose worm is cut by turning tool. Due to the simple processing equipment, short manufacturing time and low cost, this kind of worm can replace the cylindrical worm ground by ...
Yunuo Liu   +3 more
doaj   +1 more source

Influence of rotational speed and torque on meshing efficiency of double helical gear transmission system

open access: yesMechanics & Industry, 2021
The accuracy of gear meshing efficiency model is the key to study the influence factors of gear meshing efficiency. Experiment is an effective method to verify the theory model.
Wang Cheng
doaj   +1 more source

On the mesh nonsingularity of the moving mesh PDE method [PDF]

open access: yes, 2016
The moving mesh PDE (MMPDE) method for variational mesh generation and adaptation is studied theoretically at the discrete level, in particular the nonsingularity of the obtained meshes.
Huang, Weizhang, Kamenski, Lennard
core   +3 more sources

Pitting damage levels estimation for planetary gear sets based on model simulation and grey relational analysis [PDF]

open access: yes, 2011
The planetary gearbox is a critical mechanism in helicopter transmission systems. Tooth failures in planetary gear sets will cause great risk to helicopter operations.
Cheng, Zhe   +3 more
core   +1 more source

Segmenting a surface mesh into pants using Morse theory [PDF]

open access: yesGraphical Models, 2016
A pair of pants is a genus zero orientable surface with three boundary components. A pants decomposition of a surface is a finite collection of unordered pairwise disjoint simple closed curves embedded in the surface that decompose the surface into pants.
Mustafa Hajij, Tamal Dey, Xin Li
openaire   +2 more sources

Analysis of Finite Microstrip Structures Using an Efficient Implementation of the Integral Equation Technique [PDF]

open access: yes, 2005
An efficient numerical implementation of the Integral Equation technique (IE) has been developed for the analysis of the electrical characteristics of finite microstrip structures.
A. Alvarez Melcon   +26 more
core   +3 more sources

Theory of hydrodynamic phenomena in optical mesh lattices

open access: yesPhysical Review A, 2023
Signatures of superfluid-like behaviour have recently been observed experimentally in a nonlinear optical mesh lattice, where the arrival time of optical pulses propagating in a pair of coupled optical fiber loops is interpreted as a synthetic spatial dimension. Here, we develop a general theory of the fluid of light in such optical mesh lattices.
Hannah M. Price   +4 more
openaire   +2 more sources

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