Results 1 to 10 of about 1,609 (163)

An explicit and rapid intersection algorithm of plane and NURBS surface in CNC surface machining [PDF]

open access: yesScientific Reports
To address the challenge of plane-surface intersection in toolpath planning for CNC surface machining, a rapid intersection algorithm between a plane and a NURBS surface is proposed, which can provide an explicit Non-Uniform Rational B-Spline (NURBS ...
Shengli Wei   +3 more
doaj   +2 more sources

On nonparametric estimating ROC curve based on non-uniform rational B-spline. [PDF]

open access: yesPLoS ONE
The receiver operating characteristic (ROC) curve is a commonly used statistical method to assess the efficacy of a diagnostic test or biomarker measured on a continuous scale. This work presents a versatile approach using a non-uniform rational B-spline
Mahmut Sami Erdoğan
doaj   +2 more sources

Optimized dual NURBS curve interpolation for high-accuracy five-axis CNC path planning [PDF]

open access: yesScientific Reports
As the demand for high-precision and high-efficiency machining increases in modern industrial manufacturing, five-axis CNC systems have become the primary solution for complex surface processing.
Yi Xu, Mohd Hairi Mohd Zaman, Feng Zhou
doaj   +2 more sources

Generation of a Quadrilateral Mesh based on NURBS for Gyroids ‎of Variable Thickness and Porosity [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2022
The Gyroid is a periodic minimal surface explored in different applications, such as architecture and nanotechnology. The general topology is suitable for the construction of porous structures.
Mariana Flores-Jimenez   +3 more
doaj   +1 more source

NURBS-Diff: A Differentiable Programming Module for NURBS [PDF]

open access: yesComputer-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
openaire   +3 more sources

The Application of the Extended Isogeometric Analysis (XIGA) with K-Refinement Approach for the Prediction of Fatigue Life in Linear Elastic Fracture Mechanic [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2022
This study investigates the fatigue life of a cracked plate subjected to cyclic load under linear elastic fracture mechanics, using a numerical method of extended isogeometric analysis (XIGA) with a K-refinement approach.
Ata Fardaghaie   +2 more
doaj   +1 more source

ON COMPARISON OF 3D ISOGEOMETRIC TIMOSHENKO AND BERNOULLI BEAM FORMULATIONS

open access: yesActa Polytechnica CTU Proceedings, 2021
Application of isogeometric analysis (IGA) for curved beams is very convenient for its ability of exact representation of curved geometries. Several beam formulation has been presented since the introduction of IGA.
Edita Dvořáková, Bořek Patzák
doaj   +1 more source

Geometric Modeling of Compound NURBS Surfaces [PDF]

open access: yesEngineering and Technology Journal, 2020
The design of sculptured surfaces occupies an essential area in the field of modern industrial, aerospace, and medical applications. The challenge is to design products that have complex features efficiently with great flexibility of editing in certain ...
Ali K. Alwan, Wisam K. Hamdan
doaj   +1 more source

OPTIMIZATION OF THE PRODUCTION PROCESS OF THE PLASTIC INJECTION MOLDING ENGINEERING WITH THE TECHNOLOGY OF REVERSE ENGINEERING APPLICATION [PDF]

open access: yesActa Tecnología, 2015
The publication focuses on the issue from the field of reverse engineering. The theoretical introduction contains basic information from the reverse engineering and describes the process of reversing as such.
Michal Balog, Miroslav Maľcovský
doaj   +1 more source

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

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