Global/Local Iteration for Blended Composite Laminate Panel Structure Optimization Subproblems
| dc.contributor.author | Adams, David B. | en |
| dc.contributor.author | Watson, Layne T. | en |
| dc.contributor.author | Seresta, Omprakash | en |
| dc.contributor.author | Gürdal, Zafer | en |
| dc.contributor.department | Computer Science | en |
| dc.date.accessioned | 2013-06-19T14:36:04Z | en |
| dc.date.available | 2013-06-19T14:36:04Z | en |
| dc.date.issued | 2005 | en |
| dc.description.abstract | Composite panel structure optimization is commonly decomposed into panel optimization subproblems. Previous work applied a guide based design approach to the problem for a structure where the local loads were assumed to be fixed for each panel throughout the design process. This paper examines the application of guide based design to a more realistic representation of the structure where the local loads for each panel are determined through a global level analysis that is coupled with the stacking sequence for every design panel. A small problem is selected for which an exhaustive search of the subproblem design space verifies the optimality of the solution found through the global/local iteration process introduced in this work. The efficient discovery of solutions to these guide based design subproblems creates an opportunity to incorporate the solutions into a global level optimization process. A parallel genetic algorithm is proposed to control global optimization in which evaluating the fitness of each member of the population requires the solution of a guide based design subproblem where parallelism is solely within fitness evaluations. Results are presented for a wingbox design problem and compared with known solutions for the same problem to demonstrate weight reductions in a problem thought to already be near optimally solved. | en |
| dc.format.mimetype | application/pdf | en |
| dc.identifier | http://eprints.cs.vt.edu/archive/00000716/ | en |
| dc.identifier.sourceurl | http://eprints.cs.vt.edu/archive/00000716/01/gaMAMS05.pdf | en |
| dc.identifier.trnumber | TR-05-11 | en |
| dc.identifier.uri | http://hdl.handle.net/10919/20194 | en |
| dc.language.iso | en | en |
| dc.publisher | Department of Computer Science, Virginia Polytechnic Institute & State University | en |
| dc.rights | In Copyright | en |
| dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | en |
| dc.subject | Parallel computation | en |
| dc.subject | Algorithms | en |
| dc.subject | Data structures | en |
| dc.title | Global/Local Iteration for Blended Composite Laminate Panel Structure Optimization Subproblems | en |
| dc.type | Technical report | en |
| dc.type.dcmitype | Text | en |
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