NURBS-Diff: A Differentiable Programming Module for NURBS [PDF]
Computer-Aided Design, 2022 Boundary representations (B-reps) using Non-Uniform Rational B-splines (NURBS) are the de facto standard used in CAD, but their utility in deep learning-based approaches is not well researched. We propose a differentiable NURBS module to integrate NURBS representations of CAD models with deep learning methods.
Anjana Deva Prasad +5 more
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Application of isogeometric analysis to modeling of elastic deformation in dual phase materials by using statistically similar representative volume element on heterogeneous hardware devices [PDF]
Computer Methods in Materials Science, 2015 Statistically Similar Representative Volume Element (SSRVE) is a methodology applied for reduction of complexity of material microstructure representation for dual phase materials like DP steels or composites.
Daniel Bachniak, Łukasz Rauch
doaj +1 more source
An Isogeometric Analysis Approach to Kinematics of Spatial Rigid Multibody Systems with Imperfect Joints [PDF]
Modeling, 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
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End‐to‐End Deep Learning Framework for Freeform Metasurfaces via Non‐Uniform Rational B‐Splines Meta‐Atoms [PDF]
NanophotonicsThis work presents a NURBS‐enabled metasurface design framework that combines freeform meta‐atom parameterization with Transformer‐based deep learning. The unified mathematical representation expands geometric degrees of freedom while enabling efficient optical‐response prediction and inverse design.
Liu K +11 more
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Texture Mapping on NURBS Surface
Proceedings, 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
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Generating NURBS cladding and structures with parametric programming and BIM
PARC: 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
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Fitting and fairing quad-meshes by matrix weighted NURBS surfaces(矩阵权NURBS曲面的拟合与光顺)
Zhejiang 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
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An Improved Method for NURBS Surface Based on Particle Swarm Optimization BP Neural Network
IEEE 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
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Interactive rendering of NURBS surfaces [PDF]
Computer-Aided Design, 2014 [Resumo] As superficies NURBS (Non-uniform rational B-splines) son unhas das primitivas más empregadas no modelado de alta calidade nas ferramentas CAD/CAM e o software gráfico. Dado que a avaliación directa de superficies NURBS na GPU é unha tarefa altamente complexa, a aproximación máis común para o render de NURBS é a súa conversión previa na CPU en
Raquel Concheiro +3 more
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Size effects in nanostructured Li-ion battery cathode particles
Journal of the Mechanical Behavior of Materials, 2020 Cathode materials for Li-ion batteries exhibit volume expansions on the order of 10% upon maximum lithium insertion. As a result internal stresses are produced and after continuous electrochemical cycling damage accumulates, which contributes to their ...
Natarajan Sundararajan +1 more
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