Results 91 to 100 of about 1,741 (182)

Development of a new metamodelling method based on NURBS (Non-Uniform Rational B-Splines) hypersurfaces

, 2019
Despite undeniable progress achieved in computer sciences over the last decades, some problems remain intractable either by their numerical complexity (optimisation problems, …) or because they are subject to specific constraints such as real-time processing (virtual and augmented reality, …).
openaire   +1 more source

Intégration des contraintes de l'ALM dans le cadre de la méthode d'optimisation topologique basée sur les NURBS

, 2017
This work focuses on the topology optimization (TO) of 2D structures: the Solid Isotropic Material with Penalisation (SIMP) method is revisited and reformulated within the mathematical framework of Non-Uniform Rational BSpline (NURBS) functions.
COSTA, Giulio, PAILHES, Jérôme, MONTEMURRO, Marco   +2 more
core  

U-Splines: Splines Over Unstructured Meshes

, 2022
U-splines are a novel approach to the construction of a spline basis for representing smooth objects in Computer-Aided Design (CAD) and Computer-Aided Engineering (CAE).
Schmidt, Steven K.
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Developing novel restrictive design for additive manufacturing (DfAM) constraints for NURBS-based adjoint shape optimization for metal AM

Graphical Models
The widespread application of metal additive manufacturing (AM) technologies has enabled exploration of complex design spaces to achieve optimally performing components.
Sagar Jalui, Jacqueline O’Connor, Yuan Xuan, Guha Manogharan   +3 more
doaj   +1 more source

Simulation of crack propagation using isogeometric analysis applied with NURBS and LR B-splines

, 2012
This report features the isogeometric finite element method applied to the elastodynamic problem in a brittle medium with a potential for cracking. Griffith's theory for fracturing is used.
Nilsen, Oda Kulleseid
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Isogeometric analysis based on non-uniform rational B-splines technology of stress and failure strength in inter-ply hybrid laminated composite

In the present study, the stress distribution and first ply failure strength of hybrid laminated composites subjected to uniaxial tensile and compression loads are predicted using Isogeometric analysis (IGA) based on non-uniform rational B-splines ...
Madani, Kouider, Campilho, R.D.S.G., Elajrami, Mohamed, Rahmouni, Faouzi   +3 more
core   +1 more source

STRUCTURAL SHAPE OPTIMIZATION BY ISOGEOMETRIC BOUNDARY ELEMENT METHOD

Jixie qiangdu, 2019
In Isogeometric boundary element method（IGA-BEM）, Non-Uniform Rational B-Splines（NURBS） which are used for describing the geometric boundary in a computer-aided geometric design（CAGD） are employed as shape functions of Boundary Element Method.
SUN ShaoHui, YIN ShuoHui
doaj  

Preform design to reduce forging load and grain size simultaneously in disk forging of IN718

Journal of Materials Research and Technology
In this study, we propose a new methodology for designing preform shapes for turbofan blisk and disk forgings of IN718 superalloy using a CNN (Convolutional Neural Network). The objective function of the preform design model is set to minimize grain size
Byeongchan Han, Kyungmin Kim, Joonhee Park, Seunguk Hwang, Jongsik Kim, Naksoo Kim   +5 more
doaj   +1 more source

A Unified Architecture for the computation of B-Spline Curves and Surfaces

, 1997
B-Splines in general, and Non-Uniform Rational B-Splines in particular, have become indispensable modeling primitives in computer graphics and geometric modeling applications.
Meenakshisundaram Gopi, Swami Manohar, Gopi, Meenakshisundaram, Manohar, Swami   +3 more
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Algebraic grid adaptation method using non-uniform rational B-spline surface modeling

, 1992
An algebraic adaptive grid system based on equidistribution law and utilized by the Non-Uniform Rational B-Spline (NURBS) surface for redistribution is presented.
Yang, Jiann-Cherng, Soni, B. K.
core