Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Igor Tsukanov"'
Autor:
Tomislav Kosta, Igor Tsukanov
Publikováno v:
Meccanica. 49:2399-2418
Transient nature of the loading conditions applied to the structural components makes dynamic analysis one of the important components in the design-analysis cycle. Time-varying forces and accelerations can substantially change stress distributions a
Autor:
Tomislav Kosta, Igor Tsukanov
Publikováno v:
Computational Mechanics. 53:283-296
Determination of resonance frequencies and vibration modes of mechanical structures is one of the most important tasks in the product design procedure. The main goal of this paper is to describe a pioneering application of the solution structure meth
Publikováno v:
Finite Elements in Analysis and Design. 66:96-109
Holes, gaps, dangling boundaries and other imperfections of the geometric models preclude direct application of traditional engineering analysis tools. In such cases geometric inaccuracies have to be removed using a geometry ''healing'' (repair) proc
Publikováno v:
Finite Elements in Analysis and Design. 47:957-972
We describe a significant extension of the finite element method (FEM) that allows finite element analysis (FEA) to be performed in situ, on a native geometric representation of a solid domain. The proposed method, called Scan&Solve, is a particular
Publikováno v:
International Journal for Numerical Methods in Engineering. 71:313-346
Recent advances in shape optimization rely on free-form implicit representations, such as level sets, to support boundary deformations and topological changes. By contrast, parametric shape optimization is formulated directly in terms of meaningful g
Autor:
Igor Tsukanov, Vadim Shapiro
Publikováno v:
International Journal for Numerical Methods in Engineering. 72:1355-1386
This paper describes a multiresolution approach to field modeling that can be used with any meshfree or mesh-based method for adaptive solution refinement. The refined solution is represented as a superposition of a coarse (unrefined) solution and a
Publikováno v:
Computer-Aided Design. 38:87-100
Traditional mesh-based approaches to the modeling and analysis of physical fields within geometric models require some form of topological reconstruction and conversion in the mesh generation process. Such manipulations tend to be tedious and error-p
Autor:
Igor Tsukanov, Vadim Shapiro
Publikováno v:
Advances in Computational Mathematics. 23:95-124
Continuous and discrete variations in material properties lead to substantial difficulties for most mesh-based methods for modeling and analysis of physical fields. The meshfree method described in this paper relies on distance fields to boundaries a
Publikováno v:
Computer Aided Geometric Design. 21:215-242
We propose a universal approach to the problem of computer modeling of shapes with continuosly varying material properties satisfying prescribed material conditions on a finite collection of material features and global constraints. The central notio
Autor:
M. Hall, Igor Tsukanov
Publikováno v:
International Journal for Numerical Methods in Engineering. 56:1949-1972
In this paper we discuss the data structure and algorithms for the direct application of generalized Leibnitz rules to the numerical computation of partial derivatives in forward mode. The proposed data structure provides constant time access to the