Reliable Shape Optimization of Structures Subjected to Transient Dynamic Loading Using Genetic Algorithms
-
Published:2005
Issue:6
Volume:12
Page:407-424
-
ISSN:1070-9622
-
Container-title:Shock and Vibration
-
language:en
-
Short-container-title:Shock and Vibration
Author:
Chand Sabyasachi1,
Dutta Anjan1
Affiliation:
1. Department of Civil Engineering, Indian Institute of Technology, Guwahati, 781039, India
Abstract
This paper presents a reliable method of solution of two dimensional shape optimization problems subjected to transient dynamic loads using Genetic Algorithms. Boundary curves undergoing shape changes have been represented by B-splines. Automatic mesh generation and adaptive finite element analysis modules are integrated with Genetic algorithm code to carry out the shape optimization. Both space and time discretization errors are evaluated and appropriate finite element mesh and time step values as obtained iteratively are adopted for accurate dynamic response. Two demonstration problems have been solved, which show convergence to the optimal solution with number of generations. The boundary curve undergoing shape optimization shows smooth shape changes. The combinations of automatic mesh generator with proper boundary definition capabilities, analysis tool with error estimation and Genetic algorithm as optimization engine have been observed to behave as a satisfactory shape optimization environment to deal with real engineering problems.
Publisher
Hindawi Limited
Subject
Mechanical Engineering,Mechanics of Materials,Geotechnical Engineering and Engineering Geology,Condensed Matter Physics,Civil and Structural Engineering
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献