Results 91 to 100 of about 23,352,272 (162)
BIM-based framework of automatic tunnel segment assembly and deviation control
Underground SpaceThe 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 +4 more
doaj +1 more source
Simulation of crack propagation using isogeometric analysis applied with NURBS and LR B-splines
, 2012 This report features the isogeometric finite element method applied to the elastodynamic problem in a brittle medium with a potential for cracking. Griffith's theory for fracturing is used.
Nilsen, Oda Kulleseid
core
Radiation of a source on a convex NURBS surface
, 2015 In this paper we propose a technique for computing the ray caustic distance parameter on an arbitrary convex surface described by Non-Uniform Rational B-splines (NURBS) surface representation.
Balasubramanian M. +2 more
core +1 more source
, 2003 A new formulation of energy minimising splines, based on Non-Uniform Rational B-Spline (NURBS) curves, is presented. The existing snake models do not facilitate the local control of their shapes without increasing the number of control points.
Jagath C. Rajapakse +1 more
core
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
The Multilevel Structures of NURBs and NURBlets on Intervals [PDF]
, 2009 This dissertation is concerned with the problem of constructing biorthogonal wavelets based on non-uniform rational cubic B-Splines on intervals. We call non-uniform rational B-Splines ``NURBs , and such biorthogonal wavelets ``NURBlets .
Zhu, Weiwei
core
TURBS - Topologically Unrestricted Rational B-Splines
, 1995 We present a new approach to the construction of piecewise polynomial or rational C k -spline surfaces of arbitrary topological structure. The basic idea is to use exclusively parametric smoothness conditions, and to solve the well known problems at ...
Ulrich Reif
core
Construction of complex non-uniform rational B-spline volume parametric models with G<sup>1</sup> continuity. [PDF]
Vis Comput Ind Biomed ArtWang D, Chen L, Zhang J.
europepmc +1 more source
NURBS-ENHANCED FINITE ELEMENT METHOD
, 2006 An improvement of the classical finite element method is proposed. It considers an exact representation of the geometry by means of the usual CAD description of the boundary with Non-Uniform Rational B-Splines (NURBS).
Sonia Fernández-Méndez +5 more
core
Feasibility of large-scale in silico transcatheter aortic valve implantation trials using a fast-to-evaluate model. [PDF]
Biomech Model MechanobiolVerstraeten S +7 more
europepmc +1 more source