磁性粉末の球形化による圧粉磁心の直流重畳特性への影響とモデル化
スポンサーリンク
概要
- 論文の詳細を見る
Effects of powder sphericalization on DC biased properties of powder cores have been investigated and simulated using a nonmagnetic grain boundary (NMGB) model. Water atomized iron powder and Fe-6.5 mass % Si powder have been sphericalized by a powder surface modification system. Aspect ratio has got smaller depending on rotational speed. Aspect ratio of the former at rotational speed 8000rpm and 180 sec have gotten as 1.29 equivalent to gas atomized iron powder and DC biased property has been improved. They have been compared with values calculated by the NMGB model. The relative inaccuracy has been within 4.23 %. Aspect ratio of the latter (Fe-6.5 mass % Si powder) has had smaller with higher rotational speed, while DC biased property has not been improved. They have been compared with values calculated by the NMGB model. The relative inaccuracy has been within 4.68 %. The gap width distribution has been compared between calculated and measured values. The relative inaccuracy of the average gap width has been 5.17 % on the iron powder core and 78.3 % on the Fe-6.5 mass % Si powder core.
論文 | ランダム
- 第24回 JNNネットワーク協議会賞受賞者に聞く ローカル局制作者が直面する課題--BSデジタル放送開始を目前にして
- 重さ判断と把持条件
- Real-Time Feed-Forward Control LSIs for a Direct Wafer Exposure Electron Beam System
- 3211 酸化物高温超電導モータの回転数制御について(J22-2 次世代アクチュエータシステム(2),ジョイントセッション,21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)
- 4205 仮想モデルを使ったバイラテラル制御(G15-2 ロボティクスのための要素技術,G15 ロボティクス・メカトロニクス)