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| Titel: |
A LAYOUT OPTIMIZATION OF BEAM REINFORCEMENTS TO DECREASE THERMAL DEFORMATION OF BEAM STRUCTURES |
| Auteur: |
Sakata, S. Ashida, F. Zako, M. |
| Verschenen in: |
Journal of thermal stresses |
| Paginering: | Jaargang 25 (2002) nr. 11 pagina's 1081-1101 |
| Jaar: |
2002-11-01 |
| Inhoud: |
This article describes a method for solving a layout optimization problem to determine the location of beam reinforcements in order to decrease the steady-state thermal deformation of beam structures. The objective of this study is to develop a structural optimization system to determine the location of reinforcement. A design problem, which is to decide the location or other geometrical parameter of inserted reinforcements, sometimes will be a global optimization problem that has some local optimums. In order to construct the design system, therefore, the convex subspace single linkage (CSSL) method, which is developed by the authors, is introduced. The CSSL method, which is one of the global optimization methods, consists of two main processes. One is a local optimization process, and another is a global clustering process. A local optimization can be carried out using a nonlinear mathematical programming method or other local optimizing method. A clustering process is applied to convex subspaces, which are formed at each local optimizing step. Some numerical examples of reinforcement design aimed at decreasing thermal deformation are solved by the proposed system. The numerical results illustrate an effectiveness of the proposed system. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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