加工残留応力による磁気異方性を考慮した鉄損解析手法の検討

カテゴリ: 論文誌(論文単位)

グループ名: 【B】電力・エネルギー部門

発行日: 2018/01/01

タイトル(英語): Study of Computation Method of Iron Loss Considering Magnetic Isotropic by Processing Residual Stress

著者名: 土井　智史（（株）デンソー），青木　哲也（（株）デンソー），岡崎　恵一（（株）デンソー），髙橋　康人（同志社大学），藤原　耕二（同志社大学）

著者名(英語): Satoshi Doi (DENSO CORPORATION), Tetsuya Aoki (DENSO CORPORATION), Keiichi Okazaki (DENSO CORPORATION), Yasuhito Takahashi (Doshisha University), Koji Fujiwara (Doshisha University)

キーワード: 鉄損，残留応力，磁気異方性，電磁鋼板，モータ＼iron loss，residual stress，magnetic isotropic，electric steel sheet，motor

要約(英語): Mass productions of the motor core such as the blanking of the electromagnetic steel sheet and the shrink fit cause the residual strain in the material, processing strain, which prevents the movement of magnetic walls and increases the magnetic loss in the motor. Conventionally, the increase of the magnetic loss by the processing stress was evaluated with trial products, because it couldn't be done in the design phase. Particularly, the residual stress generated by processing has a complicated relationship with the direction of the magnetization vector, which has made it difficult to estimate iron loss considering processing strain.So this paper clarified the relationship between the stress tensor and the magnetization vector, and proposed a consideration method of the stress in magnetic field analysis. As a result of validating the development method with the ring test piece, we confirmed that the intended modeling can be reproduced. Furthermore, we showed the usefulness of the development method in the motor model.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.138 No.1 （2018）

本誌掲載ページ: 36-44 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/ieejpes/138/1/138_36/_article/-char/ja/