Use this URL to cite or link to this record in EThOS: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.635759
Title: Structural optimization for static and free vibration conditions using genetic and gradient-based algorithms
Author: Alkhamis, A. T. A.
Awarding Body: University College of Swansea
Current Institution: Swansea University
Date of Award: 1996
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Abstract:
This thesis is concerned with the development and application of reliable, creative and efficient computational tools for the analysis and structural optimization of 2D and 3D trusses under static and free vibration conditions and prismatic structures under static and free vibration conditions. The first part of the thesis deals with the analysis and optimization of 2D and 3D trusses under static and free vibration conditions. The second part of the thesis deals with prismatic structures under static and free vibration conditions which are idealised as effectively one-dimensional problems. The procedures used to define the structural shape and incorporating automatic mesh generation are described and the basic formulations of curved, Mindlin-Reissner finite elements and finite strips are presented for prismatic shells. The accuracy of the elements and strips is verified using several benchmark tests. The basic algorithm of structural shape optimization is then presented and several examples are carried out. In both parts the optimization analysis is carried out using two different algorithms: sequential quadratic programming (SQP) and genetic algorithms (GAs). The optimized structures are not checked for buckling. Six main computer FORTRAN programs are developed, documented and tested.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.635759  DOI: Not available
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