Results 91 to 100 of about 5,264 (176)

A locking-free quadratic nurbs-based isogeometric formulation for plates analysis

Ho Chi Minh City Open University Journal of Science - Engineering and Technology, 2012
A new Reissner-Mindlin plate formulation based on a quadratic NURBS-based isogeometric is presented. In order to avoid the transverse shear locking and to improve the accuracy of the present formulation, the quadratic NURBS-based isogeometric is ...
Thai Hoang Chien, Nguyen Xuan Hung, Nguyen Thoi Trung   +2 more
doaj  

Approximation of the soil particle-size distribution curve using a NURBS curve

Soil and Water Research
Soil particle-size distribution or soil texture presents one of the most important physical properties. There are various systems of the classification systems for soil particle-size fractions with different boundaries. Our effort was concentrated on the
Adéla Marie Marhoul, Tomáš Herza, Josef Kozák, Jaroslava Janků, Jan Jehlička, Luboš Borůvka, Karel Němeček, Miroslav Jetmar, Petr Polák   +8 more
doaj   +1 more source

Optimizing Generative Design for Cam Curve Through NURBS Approach based on Objective Constraint

Jixie chuandong, 2016
A general searching method is presented for the optimum generative design of a cam curve.This method involves the use of Non Uniform Rational B- Splines（ NURBS） outputs for representing the follower motions,namely as displacement,velocity and ...
Li Linwen, Lu Bo, Xiao Yang, Zhao Zhe
doaj  

Sensitivity Analysis of Underwater Structural-Acoustic Problems Based on Coupled Finite Element Method/Fast Multipole Boundary Element Method with Non-Uniform Rational B-Splines

Journal of Marine Science and Engineering
For the direct differentiation technique-based modeling of acoustic fluid–structure interaction and structural-acoustic sensitivity analysis, a coupling algorithm based on the finite element method (FEM) and the fast multipole boundary element method ...
Yonghui Cao, Zhongbin Zhou, Yanming Xu, Yilin Qu   +3 more
doaj   +1 more source

BIM-based framework of automatic tunnel segment assembly and deviation control

Underground Space
The design of universal segments and deviation control of segment assembly are essential for robust and low-risk tunnel construction. A building information modeling (BIM)-based framework was proposed for parametric modeling, automatic assembly, and ...
Jian Gong, Tengfei Bao, Zheng Zhu, Hong Yu, Yangtao Li   +4 more
doaj   +1 more source

Developing novel restrictive design for additive manufacturing (DfAM) constraints for NURBS-based adjoint shape optimization for metal AM

Graphical Models
The widespread application of metal additive manufacturing (AM) technologies has enabled exploration of complex design spaces to achieve optimally performing components.
Sagar Jalui, Jacqueline O’Connor, Yuan Xuan, Guha Manogharan   +3 more
doaj   +1 more source

Development of a new metamodelling method based on NURBS (Non-Uniform Rational B-Splines) hypersurfaces

, 2019
Despite undeniable progress achieved in computer sciences over the last decades, some problems remain intractable either by their numerical complexity (optimisation problems, …) or because they are subject to specific constraints such as real-time processing (virtual and augmented reality, …).
openaire   +1 more source

STRUCTURAL SHAPE OPTIMIZATION BY ISOGEOMETRIC BOUNDARY ELEMENT METHOD

Jixie qiangdu, 2019
In Isogeometric boundary element method（IGA-BEM）, Non-Uniform Rational B-Splines（NURBS） which are used for describing the geometric boundary in a computer-aided geometric design（CAGD） are employed as shape functions of Boundary Element Method.
SUN ShaoHui, YIN ShuoHui
doaj  

Preform design to reduce forging load and grain size simultaneously in disk forging of IN718

Journal of Materials Research and Technology
In this study, we propose a new methodology for designing preform shapes for turbofan blisk and disk forgings of IN718 superalloy using a CNN (Convolutional Neural Network). The objective function of the preform design model is set to minimize grain size
Byeongchan Han, Kyungmin Kim, Joonhee Park, Seunguk Hwang, Jongsik Kim, Naksoo Kim   +5 more
doaj   +1 more source

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

Bioengineering (Basel)
Roby M, Restrepo JC, Shan DK, Muluk SC, Eskandari MK, Kashyap VS, Finol EA.   +6 more
europepmc   +1 more source