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Combined parameterization of material distribution and surface mesh for stiffener layout optimization of complex surfaces

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Abstract

Stiffener layout optimization of complex surfaces is fulfilled within the framework of topology optimization. A combined parameterization method is developed in two aspects. One is to parameterize the material distribution of the stiffener layout by means of B-spline. The other is to build the mapping relationship from the known 3D surface mesh of the thin-walled structure to its parametric domain by means of mesh parameterization. The influence of mesh parameterization upon the stiffener layout is discussed to reveal the matching issue of the combined parameterization. 3D complex surfaces represented by the triangular mesh can be dealt with even though analytical parametric equations are not available. Some numerical examples are solved to demonstrate the direct advantage and effectiveness of the proposed method.

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Acknowledgements

This work is supported by National Natural Science Foundation of China (12032018).

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Authors and Affiliations

  1. State IJR Center of Aerospace Design and Additive Manufacturing, Northwestern Polytechnical University, Xi’an, 710072, Shaanxi, China

    Weihong Zhang & Shengqi Feng

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  1. Weihong Zhang
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  2. Shengqi Feng
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Correspondence to Weihong Zhang.

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Replication of results

All the results and datasets in this paper are generated using our in-house MATLAB codes. The source codes can be available only for academic use from the corresponding author with a reasonable request.

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Zhang, W., Feng, S. Combined parameterization of material distribution and surface mesh for stiffener layout optimization of complex surfaces. Struct Multidisc Optim 65, 103 (2022). https://doi.org/10.1007/s00158-022-03191-3

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