セッションID: J111p-02
会議情報
主催: 一般社団法人 日本機械学会
会議名: 2022年度 年次大会
開催日: 2022/09/11 - 2022/09/14
リニアアクチュエータを用いた火花点火エンジンの無段階可変バルブ機構
（永久磁石配列が推力特性に及ぼす影響に関する基礎的検討）
詳細
主催: 一般社団法人 日本機械学会
会議名: 2022年度 年次大会
開催日: 2022/09/11 - 2022/09/14
In order to achieve higher performance in spark-ignition engines, it is required to control the intake and exhaust valves in stepless manner according to the engine speed. Our research group has been continuously studying the electromagnetic drive valve system using a linear actuator. In this report, we have designed a linear actuator with a dual Halbach array of permanent magnets in the stator to further increase the thrust of the linear actuator. The thrust characteristics of the proposed model were investigated using electromagnetic field analysis based on the finite element method. The analysis confirmed that the Halbach array concentrates the magnetic flux on the coil side, which generates Lorentz force.
