Two-step topology optimization using topology constraint for improving the diversity of solution

Yu Matsubayashi, Takumi Nagano, Shinji Wakao, Yoshifumi Okamoto

    Research output: Contribution to journalArticle

    Abstract

    The topology optimizations which optimize a material arrangement on an element, without extracting feature quantity, are attractive methods, because we can obtain a free idea of the initial design of magnetic devices. However, in actual design processes, all of the required features of the products cannot be included objective functions, such as ease of manufacture or influence of rise in heat. Moreover, the multiple-purpose optimizations concerning many kinds of physical phenomena have difficulty with calculation time. Thus, it is necessary to estimate whether the obtained optimal solution under the limited condition is applicable to an actual designing of magnetic devices. This paper introduces two-step topology optimization method using the constraints on the similarity of the topology, which provides us various topologies including suboptimal solutions. By using the proposed method, we can determine some actual applicable solutions out of obtained solutions. The proposed method was verified by applying it to the C-core problem and the magnetic shield problem, which demonstrated the effectiveness of the proposed method.

    Original languageEnglish
    Pages (from-to)716-723
    Number of pages8
    JournalIEEJ Transactions on Power and Energy
    Volume134
    Issue number8
    DOIs
    Publication statusPublished - 2014

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    Shape optimization
    Magnetic devices
    Topology

    Keywords

    • Density method
    • Finite element method
    • Topology optimization
    • Two step topology optimization

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Energy Engineering and Power Technology

    Cite this

    Two-step topology optimization using topology constraint for improving the diversity of solution. / Matsubayashi, Yu; Nagano, Takumi; Wakao, Shinji; Okamoto, Yoshifumi.

    In: IEEJ Transactions on Power and Energy, Vol. 134, No. 8, 2014, p. 716-723.

    Research output: Contribution to journalArticle

    Matsubayashi, Yu ; Nagano, Takumi ; Wakao, Shinji ; Okamoto, Yoshifumi. / Two-step topology optimization using topology constraint for improving the diversity of solution. In: IEEJ Transactions on Power and Energy. 2014 ; Vol. 134, No. 8. pp. 716-723.
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