Results 21 to 30 of about 222,023 (293)

Three-dimensional CFD simulations with large displacement of the geometries using a connectivity-change moving mesh approach [PDF]

open access: yes, 2018
This paper deals with three-dimensional (3D) numerical simulations involving 3D moving geometries with large displacements on unstructured meshes. Such simulations are of great value to industry, but remain very time-consuming.
A Guardone   +46 more
core   +3 more sources

The whole mesh Deformation Model for 2D and 3D image segmentation [PDF]

open access: yes, 2009
In this paper we present a novel approach for image segmentation using Active Nets and Active Volumes. Those solutions are based on the Deformable Models, with slight difference in the method for describing the shapes of interests - instead of using a ...
Fernandes, J.   +3 more
core   +1 more source

Experimental and Numerical Investigations on Strains of Metal Sheet Parts Processed by Electromagnetic Forming

open access: yesJournal of Manufacturing and Materials Processing, 2023
Electromagnetic forming is applied to form metal sheet parts from both non-ferrous and ferrous materials. In this paper, the electromagnetic forming behavior of aluminum alloy, copper and steel sheets was investigated through experiments. The disk-shaped
Dorin Luca, Dorian D. Luca
doaj   +1 more source

An improved adaptive triangular mesh-based image warping method

open access: yesFrontiers in Neurorobotics, 2023
It is of vital importance to stitch the two images into a panorama in many computer vision applications of motion detection and tracking and virtual reality, panoramic photography, and virtual tours.
Wei Tang, Fangxiu Jia, Xiaoming Wang
doaj   +1 more source

Material flow during the extrusion of simple and complex cross-sections using FEM [PDF]

open access: yes, 2005
This paper deals with the extrusion of rod and shape sections and uses a 3D finite element model analysis (FEM) to predict the effect of die geometry on maximum extrusion load.
I. Flitta   +5 more
core   +4 more sources

Fast Optimization Design of the Flexure for a Space Mirror Based on Mesh Deformation

open access: yesPhotonics, 2021
According to the requirements of high force-thermal stability and high performance of a space telescope, a space mirror assembly must not be influenced by environmental factors.
Fengchang Liu   +4 more
doaj   +1 more source

Gas-Solid Erosion Study of Elbow Pipe based on Erosion Dynamic Grid Technology [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
The dynamic erosion characteristics of pipe bends exposed to gas-solid two-phase flow are investigated by using an erosion-coupled dynamic meshing method to elucidate the erosion failure phenomenon that is common in pipe elbows, transporting coal fly ash
D. S. Zhu   +4 more
doaj   +1 more source

Repairing triangle meshes built from scanned point cloud [PDF]

open access: yes, 2007
The Reverse Engineering process consists of a succession of operations that aim at creating a digital representation of a physical model. The reconstructed geometric model is often a triangle mesh built from a point cloud acquired with a scanner ...
MORARU, George   +2 more
core   +5 more sources

Progressive deforming meshes based on deformation oriented decimation [PDF]

open access: yesACM SIGGRAPH 2006 Research posters on - SIGGRAPH '06, 2006
Progressive Meshes (PM) presented by Hoppe [1996] is a method for representing a static 3D model with continuous levels-of-details (LODs) based on iterative edge-collapse/vertex-split operations. Besides static models, animation models or so-called deforming meshes are more widely used recently.
Huang, Fu-Chun   +2 more
openaire   +1 more source

Nonlinear dynamics analysis of a gear system considering tooth contact temperature and dynamic wear

open access: yesAdvances in Mechanical Engineering, 2022
Increased temperature and surface wear of high-speed and heavy-load gears are inevitable. Thermal deformation and surface wear modify the position of the action line of the tooth surface and thus influence the dynamic characteristics of the gear mesh. In
Zhe Yuan, Fei Fan, Xiaotian Bai
doaj   +1 more source

Home - About - Disclaimer - Privacy