Results 31 to 40 of about 1,787 (182)

An Isogeometric Bézier Finite Element Method for Vibration Optimization of Functionally Graded Plate with Local Refinement

Crystals, 2022
An effective free vibration optimization procedure in combination with the isogeometric approach (IGA), particle swarm optimization (PSO) and an integrated global and local parameterization is presented.
Xing Wei, Dongdong Liu, Shuohui Yin
doaj   +1 more source

Accelerating Musculoskeletal Robotics Through Parametric Design and 3D‐Printed Flexible Structures

Advanced Intelligent Systems, EarlyView.
Parametric design and flexible 3D printing create muscle‐, tendon‐, ligament‐, and cushion‐like robotic elements from a single thermoplastic polyurethane material. Tuning lattice patterns adjusts regional mechanical properties and enables coordinated multijoint motions in a life‐sized musculoskeletal leg under external suspension, with partial body ...
Shunnosuke Yoshimura, Kento Kawaharazuka, Kei Okada   +2 more
wiley   +1 more source

Optimization of Third Rail End Elbow Based on NURBS

Chengshi guidao jiaotong yanjiu
[Objective] In order to improve the collision performance of the end elbow of the shoe-rail system and enhance the current collection quality, it is necessary to carry out the optimization research on the third-rail end elbow based on NURBS (Non-Uniform ...
RUAN Jie, ZHONG Zhuolin, WANG Bingqin, LI Hongmei, XU Hongyan, YAN Xiaohui   +5 more
doaj   +1 more source

Special Approach for Thermal Modelling Fibre-Reinforced Composites with Larger Aspect Ratio

Communications, 2012
Fundamental solutions and their derivatives located along fibre axes are presented to simulate the interactions of matrix and reinforcing elements in composite materials, when the primary field is a scalar function temperature in heat conduction.
Milan Zmindak, Pavol Novak
doaj   +1 more source

RVE‐Based Mechanical Modeling of Woven CFRPs With Nonorthogonal Yarn Angles via Micro‐CT Scan and Deep Learning

Polymer Composites, EarlyView.
The overview of the CT‐based RVE reconstruction and FEA simulation processes of CFRPs. ABSTRACT This work mainly explores the effectiveness of using deep‐learning‐based reconstruction methods from CT scan images to directly establish the representative volume element (RVE) of woven composite materials with nonorthogonal yarn angles for high‐fidelity ...
Chongrui Tang, Deyong Sun, Ting Fai Kong, Meiyu Liu, Weizhao Zhang   +4 more
wiley   +1 more source

A Survey of Methods for Constructing 3D Urban Models From Point Clouds

Computer Graphics Forum, EarlyView.
The survey outlines a general process for constructing 3D models from point clouds and categorizes the methods based on their use of templates, basic surface primitives, hybrid approaches, or linear primitives. Additionally, the survey reviews the datasets and benchmarks that are essential for testing and training the developed methods.
Chiara Romanengo, Silvia Biasotti, Bianca Falcidieno, Daniela Cabiddu, Elia Moscoso Thompson, Michela Spagnuolo   +5 more
wiley   +1 more source

The Future of NURBS in CAD: Trends and Innovations [PDF]

MATEC Web of Conferences
Non-Uniform Rational B-Splines (NURBS) remain central to CAD. Their key strength lies in precision, especially for modeling intricate curves and surfaces. Engineers continue to rely on them. Yet technology advances.
Outaybi Hajar, El Khalfi Ahmed, El Makaoui Jawad   +2 more
doaj   +1 more source

Basis Networks: Learning basis functions for free‐form triangulations

Computer Graphics Forum, EarlyView.
Abstract We present a framework for learning compactly supported basis functions that define tangent continuous surfaces based on coarse irregular triangle meshes. The basis functions are represented as MLPs. Smoothness of the basis functions is achieved by using the values of Loop basis functions as the parameterization of the surface.
T. Djuren, M. Alexa
wiley   +1 more source

Survey on differential estimators for 3d point clouds

Computer Graphics Forum, EarlyView.
Abstract Recent advancements in 3D scanning technologies, including LiDAR and photogrammetry, have enabled the precise digital replication of real‐world objects. These methods are widely used in fields such as GIS, robotics, and cultural heritage. However, the point clouds generated by such scans are often noisy and unstructured, posing challenges for ...
Léo Arnal–Anger, Thibault Lejemble, David Coeurjolly, Loïc Barthe, Nicolas Mellado   +4 more
wiley   +1 more source

Analysis of the Flow Field from Connection Cones to Monolith Reactors

Energies, 2019
The connection cones between an exhaust pipe and an exhaust after-treatment system (EATS) will affect the flow into the first monolith. In this study, a new streamlined connection cone using non-uniform rational B-splines (NURBS) is applied to optimize ...
Mingfei Mu, Jonas Sjöblom, Henrik Ström, Xinghu Li   +3 more
doaj   +1 more source