| 日時 |
2013年03月12日 13時30分〜 15時00分 |
| 会場 |
室蘭工業大学 電気電子系セミナー室（A322） |
| 住所 |
室蘭市水元町27番1号 |
| 交通 |
ＪＲ東室蘭駅の場合
「東室蘭西口」から道南バス（系統番号７７）
内回り工大循環線に乗車、「工大」下車（所要時間１５分） |
| 地図 Link |
http://www.muroran-it.ac.jp/syomu/gaiyo/anaizu.html |
| 題目 |
On Uncertainties in Low-Frequency Electromagnetics |
| 講師 |
Ulrich Romer 氏（ダルムシュタット工科大学） |
| 概要 |
Simulation results of magnetic devices with ferromagnetic materials are highly sensitive to the nonlinear material law and the geometry. Due to uncertainties inherent to measurements and the fabrication process, the precise knowledge of model input data cannot be assumed to be given. Therefore, in recent years, methods of uncertainty quantification have become more and more important. In this talk a short overview over application examples (magnets, machines) will be given and the PDEs for the magnetic fields will be discussed. Under some simplifications these are 2D nonlinear elliptic interface equations of monotone type. We will introduce a stochastic collocation method based on generalized polynomial chaos to quantify the uncertainties. Furthermore, we will discuss a worst-case scenario analysis to cover cases where the statistics of the inputs is not available. Since for the worst-case analysis gradient information is especially important, sensitivity analysis techniques, e.g., adjoint equations and shape calculus are required. |
| 連絡先 |
川口 秀樹 准教授（室蘭工業大学 もの創造系領域）
TEL: 0143-46-5510
E-mail: kawa@mmm.muroran-it.ac.jp |
講演会 "On Uncertainties in Low-Frequency Electromagnetics"