Results 11 to 20 of about 23,352,272 (162)
Optimal Design of Grooved Cam Profile Using Non-uniform Rational B-splines
MATEC 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 +3 more sources
Discretization of Non-Uniform Rational B-Spline (NURBS) Models for Meshless Isogeometric Analysis [PDF]
Journal of Scientific ComputingWe 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).
Varun Shankar, Gregor Kosec
exaly +4 more sources
MathematicsIn this research, an attempt was made to employ the Non-Uniform Rational B-Splines (NURBS) method for a challenging computational fluid dynamics (CFD) problem of aerodynamics around NACA 2412 airfoils.
Sohaib Guendaoui +5 more
doaj +2 more sources
Polynomial cubic splines with tension properties [PDF]
, 2010 In this paper we present a new class of spline functions with tension properties. These splines are composed by polynomial cubic pieces and therefore are conformal to the standard, NURBS based CAD/CAM ...
Costantini, P. +2 more
core +4 more sources
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
europepmc +2 more sources
A Simple, Dynamic Geometric Phantom for MRI and CT Reconstruction Pipelines: Beyond Shepp-Logan. [PDF]
Magn Reson MedABSTRACT A customizable, dynamic geometric phantom was developed to bridge the gap between simplistic static phantoms and highly realistic, complex 4D solutions. The phantom enables initial testing, helps detect implementation errors, and supports quantitative evaluation of new dynamic acquisition and reconstruction methods.
Hakkel T +4 more
europepmc +2 more sources
NURBS-Python: An open-source object-oriented NURBS modeling framework in Python
SoftwareX, 2019 We introduce NURBS-Python, an object-oriented, open-source, Pure Python NURBS evaluation library with no external dependencies. The library is capable of evaluating single or multiple NURBS curves and surfaces, provides a customizable visualization ...
Onur Rauf Bingol, Adarsh Krishnamurthy
doaj +1 more source
Dianzi Jishu Yingyong, 2018 Although the uniform theory of diffraction(UTD) could be theoretically applied to arbitrarily-shaped convex objects modeled by non-uniform rational b-splines(NURBS), one of the great challenges in calculation of the UTD surface diffracted fields is the ...
Cao Tuo, Fu Song, He Siyuan
doaj +1 more source
Simulation of Seismic Response of Reinforced Concrete Beam-Column Joints with Nurbs Surface Fitting
Archives of Civil Engineering, 2017 This paper presents an approach based on NURBS (non-uniform rational B-splines) to achieve a seismic response surface (SRS) from a group of points obtained by using an analytical model of RC joints.
Mirhosseini R. Tabatabaei
doaj +1 more source
Analysis of cross-ply laminated plates using isogeometric analysis and unified formulation
Curved and Layered Structures, 2014 In this paper, we study the static bending and free vibration of cross-ply laminated composite plates using sinusoidal deformation theory. The plate kinematics is based on the recently proposed Carrera Unified Formulation (CUF), and the field variables ...
Natarajan S. +2 more
doaj +1 more source