Parameterization based shape optimization: theory and practical implementation aspects

Purpose – To present an approach to parameterization based shape optimization of statically loaded structures and to propose its practical implementation.Design/methodology/approach – In order to establish a convenient shape parameterization, the design element technique is employed. A rational Bezier body is used to serve as the design element. The design element is used to retrieve the nodal geometrical data of finite elements (FEs). Their field geometrical data are obtained using the FE own internal functions. For practical implementation it is proposed to establish the optimization cycle by two separately running processes. The data exchange is established by using self‐descriptive and platform‐independent XML conforming data files.Findings – The proposed approach offers an unified approach to shape optimization of skeletal, as well as continuous structures. Structural shape may be varied smoothly with a relative small set of design variables. The employment of a gradient‐based optimization algorithm ...

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