Articles you may be interested in Optimized beryllium target design for indirectly driven inertial confinement fusion experiments on the National Growth of pellet imperfections and laser imprint in direct drive inertial confinement fusion targets The hohlraum shape attracts considerable attention because there is no successful ignition method for laser-driven inertial confinement fusion at the ...

Recently, Runions and Samavati [7] proposed Partion of Unity Parametrics (PUPs), a generalization of NURBS which replaces B-spline basis functions with arbitrary Weight-Functions (WFs) while preserving affine invariance. A key problem identified by Runions and Samavati was the identification of classes of weight-functions which are well-suited to geometric modeling. In this paper, we propose a ...

Abstract Coherent lines are generally more complex spatial curves, and the study of coherent is basis for studying cutting trajectories machines. In this paper, geometry problem transformed into an algebraic solving by establishing a mathematical model line to find its parametric equations. Interpolation refers process data densification. speed planning method that adapts curvature change Non-U...

Two main technologies are available to design and represent freeform surfaces: NonUniform Rational B-Splines (NURBS) and subdivision surfaces. Both representations are built on uniform B-splines, but they extend this foundation in incompatible ways, and different industries have therefore established a preference for one representation over the other. NURBS are the dominant standard for Compute...

Abstract The deployment of laminated shallow shells has achieved significant traction across the domains aerospace, mechanical, and marine engineering, where ensuring structural stability remains a major consideration. In this paper, pre-buckling analysis is proposed based on isogeometric model. geometric structure displacement shell are represented by NURBS basis functions with fewer control p...

A NURBS (non-uniform rational B-splines)-based isogeometric fluid-structure interaction formulation, coupling incompressible fluids with nonlinear elastic solids, and allowing for large structural displacements, is developed. This methodology, encompassing a very general class of applications, is applied to problems of arterial blood flow modeling and simulation. In addition, a set of procedure...

This paper presents an evolutionary structural optimisation (ESO) approach based on the boundary element method. Non-uniform rational B-splines (NURBS) are used to define the geometry of the component and, since the shape of these B-splines is governed by a set of control points, use can be made of the locations of these control points as design variables. The developed algorithm creates NURBS-...

We present a Nitche’s method to couple non-conforming two and three-dimensional NURBS (Non Uniform Rational B-splines) patches in the context of isogeometric analysis (IGA). We present results for linear elastostatics in two and and three-dimensions. The method can deal with surface-surface or volume-volume coupling, and we show how it can be used to handle heterogeneities such as inclusions. W...

This paper deals with structured grid generation using Floater’s parametrization algorithm for surface triangulation. It gives an outline of the algorithm in the context of structured grid generation. Then it explains how the algorithm can be used to generate a structured grid over a singular NURBS surface patch. This is an alternate method to the known carpeting method of reparametrization for...