Results 81 to 90 of about 24,008 (184)

The multivariate quartic NURBS surfaces

open access: yesJournal of Computational and Applied Mathematics, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Li, Chong-Jun, Wang, Ren-Hong
openaire   +1 more source

Creeping-ray tracing algorithm for arbitrary NURBS surfaces based on adaptive variable step Euler method

open access: yesDianzi 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

Isogeometric Bi-Directional Evolutionary Structural Optimization

open access: yesIEEE Access, 2019
Isogeometric analysis (IGA), due to its high efficiency and accuracy, can be replaced by the conventional finite element method in the topology optimizations (TOs).
Ling Yin   +5 more
doaj   +1 more source

Injectivity of NURBS curves

open access: yesJournal of Computational and Applied Mathematics, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhao, Xuan-Yi, Zhu, Chun-Gang
openaire   +2 more sources

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

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   +1 more source

Static and Free Vibration Analysis of Laminated Composite Plates Using Isogeometric Approach Based on the Third Order Shear Deformation Theory

open access: yesAdvances in Mechanical Engineering, 2014
Isogeometric analysis (IGA) based on nonuniform rational B-splines (NURBS) is applied for static and free vibration analysis of laminated composite plates by using the third order shear deformation theory (TSDT).
Xinkang Li, Jifa Zhang, Yao Zheng
doaj   +1 more source

NURBS-based geometric inverse reconstruction of free-form shapes

open access: yesJournal of King Saud University: Computer and Information Sciences, 2017
In this study, a geometric inverse algorithm is proposed for reconstructing free-form shapes (curves and surfaces) in space from their arbitrary perspective images using a Non-Uniform Rational B-Spline (NURBS) model. In particular, NURBS model is used to
Deepika Saini   +2 more
doaj   +1 more source

Mathematical Models For Natural Tooth Morphology Representations

open access: yesInternational Dental Journal
Aim or purpose: This study aims to establish unified mathematical models for natural tooth morphology to address challenges in morphological analysis, classification, and simulation due to irregularity and inter-individual variations.
Du Chen, Shen Jiefei
doaj   +1 more source

A Novel Path Control Algorithm for Networked Underwater Robot

open access: yesJournal of Robotics, 2018
Under the network environment, the traditional control method of underwater Robot path has the disadvantages of low control accuracy, large error, and inefficiency. This paper proposes a novel path control method for underwater Robots based on the NURBS (
Minghong She, Liyu Tian
doaj   +1 more source

Measurement and uncertainty determination during inspection of free form profiles

open access: yesRevista Tecnologia, 2012
Os avanços da tecnologia de fabricação têm possibilitado o uso crescente de superfícies de forma livre em produtos como pás de turbinas hidráulicas e lentes especiais denominadas asféricas.
Antonio Piratelli Filho   +2 more
doaj   +2 more sources

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