| 研究課題/領域番号 |
23K13241
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| 研究機関 | 京都大学 |
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研究代表者 |
林 聖勳 京都大学, 工学研究科, 講師 (30820724)
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| 研究期間 (年度) |
2023-04-01 – 2026-03-31
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| キーワード | homogenization method / magnetic nonlinearity / ferromagnetic material / magnetic system |
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| 研究実績の概要 |
The purpose of this research is to develop a homogenization method that can accurately predict the properties of the microstructure of ferromagnets considering magnetic nonlinearity and apply it to the optimal design for improving the performance of the magnetic system. This year's research focused on optimizing the effective microstructure shape to maximize the magnetic anisotropy of ferromagnets and defining the nonlinear magnetic characteristic function using the surrogate model. In addition, it was confirmed that the microstructure shape had a great influence on the improvement of the actuator performance by applying the homogeneous properties of the microstructure to the design of a magnetic actuator with a simple shape.
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| 現在までの達成度 (区分) |
現在までの達成度 (区分)
2: おおむね順調に進展している
理由
By carrying out more case studies and benchmarking design issues than the original plan, the research schedule presented in the proposal was carried out without difficulty and to increase the accuracy of the self-linear homogenization method to be proposed. It was not possible to publish many journal papers because it was the first year of the study, but related research results have been presented at one or more international conferences, and if the research goes smoothly as it is now, it is expected that meaningful thesis results will be obtained from the second year.
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| 今後の研究の推進方策 |
So far, I have mainly looked at what magnetic properties the microstructures of ferromagnets have and how the microstructures affect the performance improvement of magnetic systems. As a result, it was confirmed that the development of a homogenization method considering magnetic nonlinearity is a very valuable research topic and will be of great help in designing magnetic systems in the future. However, there is still a limitation in that the properties of microstructures must be calculated with an approximate function using the surrogate model. Therefore, I plan to focus our research on whether it is possible to define a mathematical function for magnetic nonlinear homogenization in the future.
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| 次年度使用額が生じた理由 |
Since a number of international conferences related to electromagnetism are scheduled in the second fiscal year, a significant portion of the research fund is expected to be spent on conference participation and travel expenses. It is also considering purchasing additional desktops or laptops necessary for writing optimization codes and performing nonlinear magnetic analysis and design optimization.
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