Student written Research Laboratory Guidebook 2025Nagaoka University of Technology

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Mathematical Design Laboratory

Professor / KURAHASHI Takahiko  Assistant Professor / KAMBAYASHI Keita
  • Solving engineering problems through mathematical optimization
  • Computer simulation for micro and large scale models
  • Thorough reporting, communication, and consultation

Professor / KURAHASHI Takahiko
Prof. Kurahashi is a caring teacher. In spite of his busy schedule, he is always available for consultations with students regarding research, job hunting, scholarships, etc. In addition, one week, there is a debriefing session where the teacher and students discuss their research together, so students cam proceed with their research smoothly.

Research Content

This laboratory focuses on research on inverse analysis in the field of computational mechanics, such as automatic design methods for structures, non-destructive testing based on AI technology, and estimation of flow fields using data assimilation technology. For example, we are conducting research on automatically creating structures that maximize stiffness, identifying the shape of cavities within structures based on machine learning technology, and research on high-precision flow field estimation analysis based on filter theory. Since we are examining content that cannot be analyzed using commercially available software, we basically create calculation programs for each and conduct numerical experiments.

Result of non-destructive testing by Self-Attention Network

A Day in the Lab

In our laboratory, the first to fifth period is core time, and research is conducted during the time when classes are not in session. Also, weekly progress reports and research presentations are given every few months to enhance presentation and communication skills. Master's students participate in international conferences every year to develop their presentation skills in international settings. Other events such as the Nagaoka Fireworks Festival and welcome parties for new students are held as opportunities for interaction within the laboratory.

Photo of welcome party of B3 students

Thesis Subjects

  • (D)Proposal and verification of modified optimality criteria method in topology optimization analysis
  • (M)Numerical studies on a proposed stepwise binarization method for the topology optimization analysis of the sloshing control problem
  • (M)Application of level-set type topology optimization for defect topology identification analysis using hammering response data

The number of
PhD Graduates

1

Major employers of Graduates

  • National Institute of Technology, Gifu College
  • IHI Corporation
  • LIXIL Corporation
  • NISHIKAWA KEISOKU Co., Ltd.
  • DENSO Corporation
  • NSK Ltd.
  • SUBARU CORPORATION
  • TOKYO SEIMITSU CO., LTD.
  • OILES CORPORATION
  • MinebeaMitsumi Inc.
Writer : Yudai Sugiyama, Mechanical Engineering
(Niigata Prefectural Niigata Konan High School)