Results 61 to 70 of about 1,711 (183)
Five-Axis Tool Path Generation of Injection Mold Represented by T-Spline Surface
Advances in Polymer Technology, 2020 Injection molding is widely used in industries to produce polymeric products. At present, compound NURBS surfaces are commonly used to represent freeform surfaces in mold models.
Ce Shang +5 more
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PhotonicsNovel freeform optical design methods can be classified in two categories, depending on whether they focus on the generation of a starting point or the development of new optimization tools.
Clément Freslier +10 more
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Equiareal parameterizations of NURBS surfaces
Graphical Models, 2014 The equiareality of NURBS surfaces greatly affects the results of visualization and tessellation applications, especially when dealing with extruding and intruding shapes. To improve the equiareality of given NURBS surfaces, an optimization algorithm using the Mobius transformations is presented in this paper.
Yi-Jun Yang +2 more
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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
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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
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Isogeometric Bi-Directional Evolutionary Structural Optimization
IEEE 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
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Advances 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
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Mathematical Models For Natural Tooth Morphology Representations
International Dental JournalAim 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
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Measurement and uncertainty determination during inspection of free form profiles
Revista 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
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Applied SciencesThis study presents a hybrid Non-Uniform Rational B-Spline (NURBS) methodology for the geometric reconstruction of topology-optimized structural components.
Hajar Outaybi +5 more
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