WSEAS Transactions on Applied and Theoretical Mechanics
Print ISSN: 1991-8747, E-ISSN: 2224-3429
Volume 11, 2016
Multi-Objective Optimization of Gatling Gun Tripod Based on Mesh Morphing and RBF Model
Authors: , , , ,
Abstract: Large elastic deformation of Gatling gun tripod during the shooting process is an important factor affecting the firing accuracy. Mesh morphing and approximate model technique are comprehensively applied to the multi-objective optimization of gun tripod for improving its rigidity aiming at this problem. After finite element model of tripod is established, mesh morphing technique is utilized to define shape variables. The traditional dimension variables together with the shape variables defined by utilizing mesh morphing technique are combined to act as the design variables. Then optimal variables are screened out by Plackett-Burman design. Hammersley sampling is employed to generate uniformly distributed sampling points for fitting high-precision RBF model. Multi-Objective Genetic Algorithm is adopted to perform the optimization in which the longitudinal stiffness and transverse stiffness of tripod are defined as the objective functions while the mass of tripod leg is defined as a constraint function. The optimal solution can turn out that the longitudinal stiffness and transverse stiffness of tripod can be improved simultaneously by applying the proposed methodology to the multi-objective optimization for gun tripod.
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Pages: 22-29
WSEAS Transactions on Applied and Theoretical Mechanics, ISSN / E-ISSN: 1991-8747 / 2224-3429, Volume 11, 2016, Art. #3