Title: Application of the response surface model to optimize the design of a pressure shell
Abstract:It is desirable to use the finite element model(FEM) to optimize design,but it is too inefficient.Therefore,a strategy for optimizing the design of a cylindrical shell stiffened by rings was proposed....It is desirable to use the finite element model(FEM) to optimize design,but it is too inefficient.Therefore,a strategy for optimizing the design of a cylindrical shell stiffened by rings was proposed.The method was based on combined use of the design of experiment(DOE) and response surface model(RSM).Its central idea was that parameterization of the finite element model of the shell was set up using the secondary development tool APDL.Design variables were then chosen using criterion for structural strength.Next,samples for analysis were created in the design space.A FEM corresponding to the samples was built and analyzed.Based on this,the second-order polynomial response surface models of structural stress and weight were set up using the samples and responses obtained by FEM.An optimized design result for a cylindrical shell was then obtained by RSM using the penalty function method.The results showed that this method,which can improve the strength utilization of structure and improve the efficiency of optimization,should be a valuable reference for future practical applications.Read More
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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