Results 11 to 20 of about 9,796 (261)

Comparative Analysis of Meshing Characteristics Between Point-line Meshing Gears and Involute Gears

open access: yesJixie chuandong, 2023
Taking point-line meshing gears and involute gears as the research object, a simulation model of two kinds of meshing gears is established, the meshing characteristics of point-line meshing gears and involute gears in transmission error, tooth surface ...
Tang Yu   +3 more
doaj   +1 more source

Moving mesh cosmology: characteristics of galaxies and haloes [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2011
24 pages, 14 figures. MNRAS accepted (in press). Expanded introduction and discussion of galactic angular momentum; added references; one additional figure. Movies and high-resolution images can be found at http://www.cfa.harvard.edu/itc/research/movingmeshcosmology/
Kereš, Dušan   +4 more
openaire   +5 more sources

Adaptive mesh refinement for characteristic codes [PDF]

open access: yesJournal of Computational Physics, 2004
The use of adaptive mesh refinement (AMR) techniques is crucial for accurate and efficient simulation of higher dimensional spacetimes. In this work we develop an adaptive algorithm tailored to the integration of finite difference discretizations of wave-like equations using characteristic coordinates.
Pretorius, Frans, Lehner, Luis
openaire   +2 more sources

Analysis of SDFEM on Shishkin Triangular Meshes and Hybrid Meshes for Problems with Characteristic Layers [PDF]

open access: yesJournal of Scientific Computing, 2016
In this paper, we analyze the streamline diffusion finite element method (SDFEM) for a model singularly perturbed convection-diffusion equation on a Shishkin triangular mesh and hybrid meshes. Supercloseness property of $u^I-u^N$ is obtained, where $u^I$ is the interpolant of the solution $u$ and $u^N$ is the SDFEM's solution.
Jin Zhang 0004, Xiaowei Liu 0002
openaire   +2 more sources

Experimental study of the characteristics of a novel mesh suture [PDF]

open access: yesBritish Journal of Surgery, 2015
Abstract Background The failure of sutures to maintain tissue in apposition is well characterized in hernia repairs. A mesh suture designed to facilitate tissue integration into and around the filaments may improve tissue hold and decrease suture pull-through.
Dumanian, G. A.   +2 more
openaire   +2 more sources

Adaptive mesh refinement for characteristic grids [PDF]

open access: yesGeneral Relativity and Gravitation, 2010
I consider techniques for Berger-Oliger adaptive mesh refinement (AMR) when numerically solving partial differential equations with wave-like solutions, using characteristic (double-null) grids. Such AMR algorithms are naturally recursive, and the best-known past Berger-Oliger characteristic AMR algorithm, that of Pretorius & Lehner (J. Comp. Phys.
openaire   +3 more sources

The analysis of contact ratio of involute internal beveloid gears with small tooth difference

open access: yesJournal 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
doaj   +1 more source

Fixed mesh refinement in the characteristic formulation of general relativity [PDF]

open access: yesGeneral Relativity and Gravitation, 2017
We implement a spatially fixed mesh refinement under spherical symmetry for the characteristic formulation of General Relativity. The Courant-Friedrich-Levy (CFL) condition lets us deploy an adaptive resolution in (retarded-like) time, even for the nonlinear regime.
Barreto, W.   +2 more
openaire   +3 more sources

Meshing Characteristics of Profile Shifted Cylindrical Quasi-Involute Arc-Tooth-Trace Gears. Part 1. Theoretical Base

open access: yesJournal of Mechanical Engineering, 2022
A mathematical model of profile shifted quasi-involute arc-tooth-trace gears is obtained. The model includes functional relationships between the geometric-kinematic meshing characteristics and parameters of the generating surface as well as conditions ...
Tkach Pavlo   +5 more
doaj   +1 more source

Analysis of Meshing Contact Characteristics of the Gear Transmission System Based on Data Mining Technology

open access: yesJixie chuandong, 2023
Aiming at the difficulty of analyzing the meshing contact characteristics of gear transmission system under the big data formed by multiple working conditions and uncertain parameters, a meshing contact characteristics analysis method of gear ...
Li Shengjia   +4 more
doaj  

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