Entropy-based method for topological optimization of truss structures

Citation
By. Duan et al., Entropy-based method for topological optimization of truss structures, COMPUT STRU, 75(5), 2000, pp. 539-550
Citations number
15
Categorie Soggetti
Civil Engineering
Journal title
COMPUTERS & STRUCTURES
ISSN journal
00457949 → ACNP
Volume
75
Issue
5
Year of publication
2000
Pages
539 - 550
Database
ISI
SICI code
0045-7949(200005)75:5<539:EMFTOO>2.0.ZU;2-G
Abstract
This paper presents an entropy-based topological optimization method for tr uss structures. To begin with, a group of variables which mean the density distribution of structural strain energy are introduced. By the variables, a bridge between the energy distribution and topological optimization of tr usses is constructed so that the problem of searching for optimal topology is transformed into a problem of finding out the optimum distribution of th e strain energy. Once, then, the energy distribution is known, the optimal cross-sectional areas of elements are found out. The above two steps are ex ecuted in turn till the convergence is reached. Next, the stiffness and str ength reliability corresponding to the final topological structure is compu ted with the reasonable result. (C) 2000 Elsevier Science Ltd. All rights r eserved.