Genetic Algorithm-Based Methodology for Unstructured Design of Truss Structures
Shrestha, Sharad Man
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https://hdl.handle.net/2142/83479
Description
Title
Genetic Algorithm-Based Methodology for Unstructured Design of Truss Structures
Author(s)
Shrestha, Sharad Man
Issue Date
1999
Doctoral Committee Chair(s)
Ghaboussi, Jamshid
Department of Study
Civil Engineering
Discipline
Civil Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Engineering, Civil
Language
eng
Abstract
In this study, a new string representation scheme is developed that efficiently represents skeletal structures in strings and allows evolution of optimum structural designs under the action of the genetic operators; a new structural synthesis scheme is developed to synthesize structures from the information decoded from strings; a new generalized penalty function is developed that is able to handle many different kinds of design constraints; and a new fitness functions is developed that is able to handle various kinds of design objectives. The methodology is implemented as a software application. The methodology is demonstrated on some design examples and the results presented. The methodology is validated by comparing the evolved designs with the general engineering practice that has evolved through experience.
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