Results 21 to 30 of about 24,008 (184)

Comparison Between T-Spline Surface and NURBS Surface [PDF]

open access: yesEngineering and Technology Journal, 2015
This research uses T-spline for surface modeling and compares it with NURBS modeling to get the best modeling points between the two methods. The comparison will be through surface analysis and manufacturing process.T-Splines surfaces typically have 50 ...
Laith Abdullah Mohammed   +1 more
doaj   +1 more source

NURBS-based kinematic limit analysis of FRP-reinforced masonry walls with out-of-plane loading

open access: yesFracture and Structural Integrity, 2020
A three-dimensional (3D) general upper-bound limit analysis procedure for the determination of the collapse load of out-of-plane loaded masonry walls with Fiber Reinforced Polymer (FRP) reinforcement strips is presented.
Andrea Chiozzi   +3 more
doaj   +1 more source

An Isogeometric Analysis Approach to Kinematics of Spatial Rigid Multibody Systems with Imperfect Joints [PDF]

open access: yesModeling, Identification and Control, 2020
This paper proposes a novel generic methodology for kinematics of spatial rigid-multibody systems with and without lubricated joints. In this method CAD surface representations in the form of non-uniform rational B-splines (NURBS) are used to address the
Remzija Cerimagic   +3 more
doaj   +1 more source

Texture Mapping on NURBS Surface

open access: yesProceedings, 2018
Texture mapping allows high resolution details over 3D surfaces. Nevertheless, texture mapping has a number of unresolved problems such as distortion, boundary between textures or filtering. On the other hand, NURBS surfaces are usually decomposed into a
Sergio Vázquez, Margarita Amor
doaj   +1 more source

An Improved Method for NURBS Surface Based on Particle Swarm Optimization BP Neural Network

open access: yesIEEE Access, 2020
In order to further improve the accuracy and speed of the present commonly used NURBS surface method, an improved method for NURBS surface based on particle swarm optimization BP neural network is proposed.
Xiaoqiang Tian   +4 more
doaj   +1 more source

Biomimetic Design and Fabrication of Interior Architecture of Tissue Scaffolds Using Solid Freeform Fabrication [PDF]

open access: yes, 2004
Modeling, design and fabrication of tissue scaffolds with intricate architecture, porosity and pore size for desired tissue properties presents a challenge in tissue engineering.
Bradburyq, T.   +4 more
core   +1 more source

Fitting and fairing quad-meshes by matrix weighted NURBS surfaces(矩阵权NURBS曲面的拟合与光顺)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2023
介绍了利用矩阵权非均匀有理 B-spline(non-uniform rational B-spline,NURBS)曲面拟合与光顺带法向的网格数据。通过输入带法向的规则四边形网格,以网格的顶点为曲面的控制顶点,用法向信息计算每个控制顶点对应的矩阵权,构造矩阵权NURBS曲面。与传统NURBS曲面相比,矩阵权NURBS曲面具有拟柱面精度,当数据均匀采样自光滑曲面时,构造的矩阵权NURBS曲面具有较好的光顺性且能很好地拟合网格模型;当输入的网格数据掺杂噪声时 ...
董国鑫(DONG Guoxin)   +1 more
doaj   +1 more source

A priori error for unilateral contact problems with Lagrange multiplier and IsoGeometric Analysis [PDF]

open access: yes, 2018
In this paper, we consider unilateral contact problem without friction between a rigid body and deformable one in the framework of isogeometric analysis.
Antolin, Pablo   +2 more
core   +2 more sources

Generating NURBS cladding and structures with parametric programming and BIM

open access: yesPARC: Pesquisa em Arquitetura e Construção, 2020
The process of designing and building curvilinear architectures is still challenging. The use of multiple applications with distinctive design paradigms are unlikely to disappear. The interoperability used here was not only the conventional one.
Neander Furtado Silva   +2 more
doaj   +1 more source

Information hiding through variance of the parametric orientation underlying a B-rep face [PDF]

open access: yes, 2008
Watermarking technologies have been proposed for many different,types of digital media. However, to this date, no viable watermarking techniques have yet emerged for the high value B-rep (i.e.
Corney, Jonathan   +2 more
core   +1 more source

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