Category Archives: Research

Paper entitled “Effects of Rotated Stacking, Bolts, and Bonded Regions on Modal Parameters of Bonded Stator Cores of Electric Machines” has been accepted for publication in IEEE Transactions on Energy Conversion[1]. The article is based on a collaborative work with Gifu University and Toyohashi University of Technology, under the research grant from Transmission Research Association for Mobility Innovation (TRAMI).

[1] Akira Saito, Hayato Maeba, Masami Matsubara and Kohei Furuya, “Effects of Rotated Stacking, Bolts, and Bonded Regions on Modal Parameters of Bonded Stator Cores of Electric Machines”, IEEE Transactions on Energy Conversion, doi:10.1109/TEC.2025.3550914, 2025 [link].

We have attended the 2024 Conference on Theoretical and Applied Mechanics (CTAM), which was held at National Tsinghua University (Hsinchu, Taiwan). Six of the lab members (Soichiro Osuga, Shogo Shimada, Hideaki Namiki, Kenta Hayashi, So Miyazaki, and Daiki Ogura) gave research presentations at the session “Structural Dynamics and Vibration”.

We have visited the Nonlinear Dynamics and Vibration Laboratory (Prof. Meng-Hsuan Tien) at the National Tsinghua University.

A paper is accepted for publication in Journal of Vibration and Control.

Marisa Nagata and Akira Saito, “Sound synthesis of drums based on modal representation of transfer functions”, Journal of Vibration and Control, 2024.

Three of our graduate students, Soichiro Osuga, Shogo Shimada, and Hideaki Namiki presented their work at the 17th International Conference on Motion and Vibration Control. (MoViC 2024) and the 20th Asia Pacific Vibration Conference (5-8 August 2024 in Tokyo, Japan). Keep up the good work!

A paper has been accepted and published online in Journal of Computational and Nonlinear Dynamics. The paper is based on a Master’s thesis work by Ryosuke Kanki.

Ryosuke Kanki and Akira Saito, “Data-driven Initial Gap Identification of Piecewise-linear Systems using Sparse Regression and Universal Approximation Theorem”, doi:10.1115/1.4065440, Journal of Computational and Nonlinear Dynamics, 2024. [link]

Grad student Ryosuke Kanki and lab alumnus Takumi Furihata presented at the IUTAM Symposium on Nonlinear Dynamics for design of mechanical systems across different length/time scales, which was held in Tsukuba, Japan.

• Ryosuke Kanki and Akira Saito, ”Automatic Generation of Governing Equations for Mechanical Systems with Piecewise-Linear Systems using Sparse Regression”, IUTAM Symposium on Nonlinear Dynamics for design of mechanical systems across different length/time scales, PS28, Tsukuba, Japan, August 2023.
• Takumi Furihata and Akira Saito, ”Oscillator design for energy harvesters with nonlinear snap-through motion”, IUTAM Symposium on Nonlinear Dynamics for design of mechanical systems across different length/time scales, PS39, Tsukuba, Japan, August 2023.

A paper entitled “Damage identification based on topology optimization and Lasso regularization” has been published online in Archive of Applied Mechanics. The article is based on a Master’s thesis work of a former lab member Ryo Sugai, which is part of a research collaboration with Dr. Saomoto of the National Institute of Advanced Industrial Science and Technology (AIST). The article can be accessed via SharedIt (view only).

The paper entitled “Damage identification using noisy frequency response functions based on topology optimization” has been published in Journal of Sound and Vibration.

Professor Saito has given a presentation at the 16th International Conference on Motion and Vibration Control (MoViC 2022), which was held at UCLA. The presented work was based on the work of our former graduate student Tatsuya Suzuki.

Akira Saito and Tatsuya Suzuki, ”Forced response vibration analysis of induction motor stators induced by electromagnetic forces”, In Proceedings of the 16th International Conference on Motion and Vibration Control (MoViC 2022), Paper ID: 145, Los Angeles, September 2022.

Our graduate student Zhongxu Wang has given an oral presentation at the Asian congress of structural and multidisciplinary optimization (ACSMO).

Zhongxu Wang, Akira Saito and Hidetaka Saomoto, ”Damage identification strategies using topology optimization and frequency response functions”, Asian Congress of Structural and Multidisciplinary Optimization (ACSMO) 2022, May 2022.