Results 21 to 30 of about 537,671 (190)

Computational Design Optimization for S-Ducts

open access: yesDesigns, 2018
In this work, we investigate the computational design of a typical S-Duct that is found in the literature. We model the design problem as a shape optimization study. The design parameters describe the 3D geometrical changes to the shape of the S-Duct and
Alessio D’Ambros   +4 more
doaj   +1 more source

Free Form Deformation Method Applied to Modeling and Design of Hypersonic Glide Vehicles

open access: yesIEEE Access, 2019
The aerodynamic shape of the hypersonic glide vehicle (HGV) has become a research topic nowadays due to its excellent aerodynamic performances. Some limitations need to be reduced when the free-form deformation (FFD) method is applied to parametric ...
Bin Zhang   +3 more
doaj   +1 more source

Free form deformation and symmetry constraint‐based multi‐modal brain image registration using generative adversarial nets

open access: yesCAAI Transactions on Intelligence Technology, 2023
Multi‐modal brain image registration has been widely applied to functional localisation, neurosurgery and computational anatomy. The existing registration methods based on the dense deformation fields involve too many parameters, which is not conducive ...
Xingxing Zhu, Mingyue Ding, Xuming Zhang
doaj   +1 more source

Free-form skeleton-driven mesh deformations

open access: yesProceedings of the eighth ACM symposium on Solid modeling and applications - SM '03, 2003
In this paper, we propose a new scheme for free-form skeleton-driven global mesh deformations. First a Voronoi-based skeletal mesh is extracted from a given original mesh. Next the skeletal mesh is modified by free-form deformations. Then a desired global shape deformation is obtained by reconstructing the shape corresponding to the deformed skeletal ...
Yoshizawa, S.   +2 more
openaire   +2 more sources

Free-form solid modeling using deformations [PDF]

open access: yesComputers & Graphics, 1990
Abstract One of the most important problems of available solid modeling systems is that the range of shapes generated is limited. It is not easy to model objects with free-form surfaces in a conventional solid modeling system. Such objects can be defined arbitrarily, but then operations on them are not transparent and complications occur.
Güdükbay, U., Özgüç, B.
openaire   +3 more sources

Simulation analysis of deformation spring-back of free-form surface composite with cellular foam filling

open access: yesMaterials Research Express, 2021
Due to the complex thermo-chemical-mechanical coupling during the curing and forming process of composite materials, spring-back is commonly observed after forming, which makes the shape of parts after curing and forming deviate from the design shape ...
Xishuang Jing   +7 more
doaj   +1 more source

Development of Free-Form Assembly-Type Mold Production Technology Using 3D Printing Technology

open access: yesBuildings, 2023
Free-form molds are used for one-time curve configuration, and because they are produced through manpower, they have issues with reduced precision and the occurrence of errors.
Jongyoung Youn   +6 more
doaj   +1 more source

An inexact Newton-Krylov algorithm for constrained diffeomorphic image registration [PDF]

open access: yes, 2015
We propose numerical algorithms for solving large deformation diffeomorphic image registration problems. We formulate the nonrigid image registration problem as a problem of optimal control.
Biros, George, Mang, Andreas
core   +1 more source

Optimization Approach for a Catamaran Hull Using CAESES and STAR-CCM+

open access: yes한국해양공학회지, 2020
This paper presents an optimization process for a catamaran hull form. The entire optimization process was managed using the CAD-CFD integration platform CAESES.
Zhang Yongxing, Dong-Joon Kim
doaj   +1 more source

Angular quantization and form-factors in massive integrable models [PDF]

open access: yes, 1997
We discuss an application of the method of the angular quantization to reconstruction of form-factors of local fields in massive integrable models. The general formalism is illustrated with examples of the Klein-Gordon, sinh-Gordon and Bullough-Dodd ...
Arefyeva   +36 more
core   +2 more sources

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