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- W2366553260 abstract "A shape optimization method of truss structures subjected to dynamic loads is developed.The objective is to achieve the minimum weight design.The constraints include the strength,stiffness and stability of the truss.The work is arranged as: Firstly,the dynamic responses,their first and second derivatives with respect to design variables are calculated based on Newmarkβ method.Secondly,the inequality time-dependent constraint problem is converted into a sequence of appropriately formed time-independent unconstrained problems using the integral penalty function method.Gradient and Hessian matrix of the penalty function are calculated using the first and second derivatives of dynamic responses with respect to design variables.Thirdly,Marquardt's method which makes fully use of gradient and Hessian matrix is employed to solve unconstrained problems.Finally,finding optimum shape design of a ten-bar truss subjected to dynamic loads is demonstrated.The results show that optimization methods presented in this paper are an effective approach for minimum weight design with strength,stiffness and stability constraints." @default.
- W2366553260 created "2016-06-24" @default.
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- W2366553260 date "2011-01-01" @default.
- W2366553260 modified "2023-09-25" @default.
- W2366553260 title "SHAPE OPTIMIZATION OF TRUSS SUBJECTED TO DYNAMIC LOADS USING GRADIENT AND HESSIAN MATRIX" @default.
- W2366553260 hasPublicationYear "2011" @default.
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