A new Evolutionary Structural Optimization method and application for aided design to reinforced concrete components

The Evolutionary Structural Optimization (ESO) has been applied to find the optimal structural topology for design and construction purposes. However, its efficiency is low due to the imperfect deletion criteria. This paper presents an improved elimination criterion and the Windowed Evolutionary Str...

Full description

Saved in:
Bibliographic Details
Published inStructural and multidisciplinary optimization Vol. 62; no. 5; pp. 2599 - 2613
Main Authors Wang, Leijia, Zhang, Huzhi, Zhu, Mingqiao, Chen, Y. Frank
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.11.2020
Springer Nature B.V
Subjects
Computational Mathematics and Numerical Analysis
Criteria
Efficiency
Engineering
Engineering Design
Evolution
Finite element method
Optimization
Reinforced concrete
Research Paper
Theoretical and Applied Mechanics
Topology
Windowed
Topology optimization
Evolutionary Structural Optimization method
Computational efficiency
Structural optimization
Online AccessGet full text

Cover

More Information
Summary:The Evolutionary Structural Optimization (ESO) has been applied to find the optimal structural topology for design and construction purposes. However, its efficiency is low due to the imperfect deletion criteria. This paper presents an improved elimination criterion and the Windowed Evolutionary Structural Optimization (WESO) method. The former considers the structural average strain energy as the elimination criteria in the optimization, with the elimination rate set as a self-adaption state by an adjustable window. Thus, the problems of low optimization efficiency and distorted optimization results in the traditional ESO can be solved to a certain extent. The WESO method can then be extended and applied with a complex finite element model. It is found that the method has better optimal ability in handling discrete elements in vast structures. Compared with the other method, the WESO method has high computational efficiency and offers more stable and reliable topology than the Michell theoretical solution. Lastly, upon developing the optimal topology for a double-deck structure, it is shown that the WESO method has a great potential in civil engineering applications.
ISSN:1615-147X
1615-1488
DOI:10.1007/s00158-020-02626-z