ew 18: e13

Research Article

Circular packing for support-free structures

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  • @ARTICLE{10.4108/eai.13-7-2018.164561,
        author={I. Yanchevskyi and R. Lachmayer and I. Mozgova and R-B. Lippert and G. Yaskov and T. Romanova and I. Litvinchev},
        title={Circular packing for support-free structures},
        journal={EAI Endorsed Transactions on Energy Web: Online First},
        volume={},
        number={},
        publisher={EAI},
        journal_a={EW},
        year={2020},
        month={5},
        keywords={support-free design, circular packing, stress state, technological post-processing direct metal laser sintering},
        doi={10.4108/eai.13-7-2018.164561}
    }
    
  • I. Yanchevskyi
    R. Lachmayer
    I. Mozgova
    R-B. Lippert
    G. Yaskov
    T. Romanova
    I. Litvinchev
    Year: 2020
    Circular packing for support-free structures
    EW
    EAI
    DOI: 10.4108/eai.13-7-2018.164561
I. Yanchevskyi1, R. Lachmayer2, I. Mozgova2, R-B. Lippert2, G. Yaskov3, T. Romanova3,4,*, I. Litvinchev5
  • 1: Institute of Mechanical Engineering, National Technical University “Igor Sikorsky Kyiv Polytechnic Institute”, 37 Peremohy ave., 03056 Kyiv, Ukraine
  • 2: Institute of Product Development and Engineering Design, Leibniz University Hannover, A Welfengarten str., 30167 Hanover, Germany
  • 3: Institute for Mechanical Engineering Problems, 2/10 Pozharskogo str., 61046 Kharkiv, Ukraine
  • 4: Kharkiv National University of Radioelectronics, 14 Nauky ave., 61166, Kharkiv, Ukraine
  • 5: Faculty of Mechanical and Electrical Engineering, Nuevo Leon State University, San Nicolas de los Garza, Mexico
*Contact email: tetiana.romanova@nure.ua

Abstract

An approach for designing topologically optimized parts is proposed. It is used for manufacturing support-free structures by Direct Metal Laser Sintering (DMLS). This integral approach allows obtaining parts taking into account their strength properties. It combines weak sensitivity to the direction of printing with the simplicity of the subsequent post-processing. A circular packing model is proposed to optimize the part geometry subject to the DMLS constraints. A fast heuristic algorithm is developed to solve the corresponding optimization problem. A prototype obtained by this optimized design approach is presented.