Results 1 to 10 of about 779 (181)

Linkage and Cam Design with MechDev based on Non-Uniform Rational B-Splines [PDF]

open access: yesMachines, 2020
Several software products exist in order to support engineers during the mechanism design process. The software “Mechanism Developer” (abbr. MechDev) is one of these products. MechDev provides many functionalities concerning the kinematic and
Mario Müller   +3 more
doaj   +3 more sources

Optimal Design of Grooved Cam Profile Using Non-uniform Rational B-splines [PDF]

open access: yesMATEC Web of Conferences, 2017
In order to reduce the fatigue damage in grooved cam mechanisms, grooved cam profile was reconstructed with non-uniform rational B-splines (NURBS). Considering joint friction, dynamic model of grooved cam mechanisms was established and the contact stress
Xuan Guantao, Shao Yuanyuan, Liu Lei
doaj   +2 more sources

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 (NURBS) for estimating the ROC curve.
Erdoğan MS.
europepmc   +2 more sources

Three-dimensional reconstruction of industrial parts from a single image [PDF]

open access: yesVisual Computing for Industry, Biomedicine, and Art
This study proposes an image-based three-dimensional (3D) vector reconstruction of industrial parts that can generate non-uniform rational B-splines (NURBS) surfaces with high fidelity and flexibility. The contributions of this study include three parts:
Zhenxing Xu   +3 more
doaj   +2 more sources

An Integrated Framework for Automated Image Segmentation and Personalized Wall Stress Estimation of Abdominal Aortic Aneurysms [PDF]

open access: yesBioengineering
Abdominal Aortic Aneurysm (AAA) remains a significant public health challenge, with an 82.1% increase in related fatalities from 1990 to 2019. In the United States alone, AAA complications resulted in an estimated 13,640 deaths between 2018 and 2021.
Merjulah Roby   +6 more
doaj   +2 more sources

Discretization of Non-uniform Rational B-Spline (NURBS) Models for Meshless Isogeometric Analysis. [PDF]

open access: yesJ Sci Comput
AbstractWe present an algorithm for fast generation of quasi-uniform and variable-spacing nodes on domains whose boundaries are represented as computer-aided design (CAD) models, more specifically non-uniform rational B-splines (NURBS). This new algorithm enables the solution of partial differential equations within the volumes enclosed by these CAD ...
Duh U, Shankar V, Kosec G.
europepmc   +6 more sources

Flexible control and trajectory planning of medical two-arm surgical robot [PDF]

open access: yesFrontiers in Neurorobotics
This paper introduces the flexible control and trajectory planning medical two-arm surgical robots, and employs effective collision detection methods to ensure the safety and precision during tasks.
Yanchun Xie   +4 more
doaj   +2 more sources

Innovative tooth contact analysis with non-uniform rational b-spline surfaces [PDF]

open access: yesForschung im Ingenieurwesen, 2021
AbstractMore and more simulation tools are being used in the development of gears in order to save development time and costs while improving the gears. BECAL is a comprehensive software tool for the tooth contact analysis (TCA) of bevel, hypoid, beveloid and spur gears.
F. Muller, S. Schumann, B. Schlecht
openaire   +1 more source

IG-LSPIA: Least Squares Progressive Iterative Approximation for Isogeometric Collocation Method

open access: yesMathematics, 2023
The isogeometric collocation method (IGA-C), which is a promising branch of isogeometric analysis (IGA), can be considered fitting the load function with the combination of the numerical solution and its derivatives.
Yini Jiang, Hongwei Lin
doaj   +1 more source

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