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  1. No Access

    Article

    Multimaterial homologous topology optimization of large telescope structure under multiple elevation conditions

    This paper describes a novel numerical design method for homologous deformation problems in large telescope structural design using density-based multimaterial topology optimization. The Large Submillimeter Te...

    Kohei Shintani, Hiroaki Kawamura… in Structural and Multidisciplinary Optimizat… (2024)

  2. Article

    Open Access

    Robust topology optimization of multi-material lattice structures under material and load uncertainties

    Enabled by advancements in multi-material additive manufacturing, lightweight lattice structures consisting of networks of periodic unit cells have gained popularity due to their extraordinary performance and ...

    Yu-Chin Chan, Kohei Shintani, Wei Chen in Frontiers of Mechanical Engineering (2019)

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  3. No Access

    Article

    Enhanced Collaborative Optimization Using Alternating Direction Method of Multipliers

    Enhanced collaborative optimization (ECO) is a recently developed multidisciplinary design optimization (MDO) method in the family of collaborative optimization (CO). While ECO achieves better optimization per...

    Siyu Tao, Kohei Shintani, Guang Yang… in Structural and Multidisciplinary Optimizat… (2018)

  4. No Access

    Chapter and Conference Paper

    Robust Multi-material Topology Optimization for Lattice Structure Under Material Uncertainties

    Recent advances in additive manufacturing have enabled the manufacture of hollow shapes with complex external geometry and multiple materials using networks of small periodic cells known as lattice structures....

    Kohei Shintani, Yu-Chin Chan, Wei Chen in Advances in Structural and Multidisciplina… (2018)

  5. No Access

    Article

    Shape optimization for suppressing brake squeal

    The present paper describes a solution to a non-parametric shape optimization problem of a brake model to suppress squeal noise. The brake model consists of a rotor and a pad, between which Coulomb friction oc...

    Kohei Shintani, Hideyuki Azegami in Structural and Multidisciplinary Optimization (2014)

  6. No Access

    Chapter

    Dynamical Structure of Behavioral Similarities of the Market Participants in the Foreign Exchange Market

    The financial markets started to be computerized due to development and spread of the Information and Communication Technology (ICT) in early 1990s. As the result rapid development and spread of electrical tra...

    Aki-Hiro Sato, Kohei Shintani in Econophysics of Markets and Business Networks (2007)