Zobrazeno 1 - 10
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pro vyhledávání: '"H. A. Rahimi Bondarabady"'
Autor:
H. A. Rahimi Bondarabady, Ali Kaveh
Publikováno v:
International Journal for Numerical Methods in Engineering. 60:1803-1815
This paper presents an algorithm for nodal numbering in order to obtain a small wavefront. Element clique graphs are employed as the mathematical models of finite element meshes. A priority function containing five vectors is used, which can be viewe
Autor:
H. A. Rahimi Bondarabady, Ali Kaveh
Publikováno v:
Finite Elements in Analysis and Design. 40:1271-1280
In this paper, ordering is performed using graph theory for defining the node priority, as a function of vectors containing the graph properties. The coefficients corresponding to these vectors are obtained using a simple genetic algorithm. Examples
Autor:
H. A. Rahimi Bondarabady, Ali Kaveh
Publikováno v:
Acta Mechanica. 167:131-144
In this article, an efficient algorithm is developed for the decomposition of large-scale finite element models. A weighted incidence graph with N nodes is used to transform the connectivity properties of finite element meshes into those of graphs. A
Autor:
H. A. Rahimi Bondarabady, Ali Kaveh
Publikováno v:
Finite Elements in Analysis and Design. 39:1237-1247
A new method is developed for finite element (FE) domain decomposition. This method employs a hybrid graph-genetic algorithm for graph partitioning and correspondingly bisects finite element (FE) meshes.A weighted incidence graph is first constructed
Autor:
Ali Kaveh, H. A. Rahimi Bondarabady
Publikováno v:
Computers & Structures. 80:219-225
Nodal ordering for the formation of suitable sparsity patterns for stiffness matrices of finite element meshes are often performed using graph theory and algebraic graph theory. In this paper a hybrid method is presented employing the main features o
Autor:
Ali Kaveh, H. A. Rahimi Bondarabady
Publikováno v:
Finite Elements in Analysis and Design. 38:245-261
In this paper an efficient method is developed for nodal and element ordering of structures and finite element models. The present method is based on concepts from algebraic graph theory and comprises of an efficient algorithm for calculating the Fie
Autor:
H. A. Rahimi Bondarabady, Ali Kaveh
Publikováno v:
International Journal of Numerical Methods for Heat & Fluid Flow. 11:358-370
In this paper a new method is proposed for finite element domain decomposition. A weighted incidence graph is first constructed for the finite element model. A spectral partitioning heuristic is then applied to the graph using the second and the thir
Autor:
Ali Kaveh, H. A. Rahimi Bondarabady
Publikováno v:
Computers & Structures. 78:227-235
In this paper, 10 different graphs are associated with finite element models for transforming the connectivity properties of such models into those of their graphs. These graphs are employed in ordering the finite element models. An algorithm is pres
Autor:
Ali Kaveh, H. A. Rahimi Bondarabady
Publikováno v:
Communications in Numerical Methods in Engineering. 16:379-389
In this paper an efficient method is developed for decomposition of finite element meshes. The present method is based on concepts from algebraic graph theory and consists of an efficient algorithm to calculate the Fiedler vector of the Laplacian mat
Publikováno v:
Journal of Structural Engineering. 139
Recent investigations have demonstrated the ability of semiactive devices to reduce the structural vibration. In this paper, a new device called the semiactive damper actuator (SADA) is introduced, which reduces the vibration response of structures d