鉄心打ち抜き時の加工劣化を考慮したモータの磁界解析手法

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門

発行日: 2015/11/01

タイトル(英語): Accurate Magnetic Field Analysis for Estimating Motor Characteristics Considering Deteriorated Magnetic Properties in Magnetic Core Due to Stamping

著者名: 山口　信一（三菱電機（株）先端技術総合研究所），大穀　晃裕（三菱電機（株）先端技術総合研究所），谷　良浩（三菱電機（株）先端技術総合研究所），田中　敏則（三菱電機（株）先端技術総合研究所），藤野　千代（三菱電機（株）先端技術総合研究所）

著者名(英語): Shinichi Yamaguchi (Mitsubishi Electric Corporation Advanced Technology R&D Center), Akihiro Daikoku (Mitsubishi Electric Corporation Advanced Technology R&D Center), Yoshihiro Tani (Mitsubishi Electric Corporation Advanced Technology R&D Center), Toshinori Tanaka (Mitsubishi Electric Corporation Advanced Technology R&D Center), Chiyo Fujino (Mitsubishi Electric Corporation Advanced Technology R&D Center)

キーワード: 磁界解析，構造解析，歪，応力，電磁鋼板，モータ　　magnetic field analysis，structural analysis，strain，stress，magnetic steel sheet，motor

要約(英語): The electrical steel sheets of motors are often stamped with dies in order to raise productivity. The magnetic characteristics of electrical steel sheets under the strained and stressed conditions due to stamping are known to be inferior to those under normal conditions. In this paper, we propose an accurate finite-element analysis for estimating motor characteristics that focuses on elasto-plastic deformation in the magnetic core. The calculated results were compared with observations of a rectangular test piece in order to validate the methods. Based on the results, the method that considers the maximum principal stress is suitable rather than the method that considers the von Mises stress. This is because the maximum principal stress can be used to distinguish the magnetic properties under compressive stress from the properties under tensile stress. In addition, the proposed method is applicable to motor analysis. The cogging torque waveform and iron loss differ depending on the strain and stress distribution in the magnetic core when the stator core of the motor is stamped out from electric steel sheets with a die.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.135 No.11 （2015） 特集：回転機技術

本誌掲載ページ: 1107-1115 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejias/135/11/135_1107/_article/-char/ja/