单向电永磁作动器结构优化与动态特性分析

针对电磁作动器的使用要求，设计出一种具有能耗低、吸力大及响应快等特点的新型单向电永磁作动器。结合有限元仿真软件，利用有限元法研究作动器的结构参数如铁芯齿形结构、平面结构、无永磁结构、铁芯的倾斜角度及衔铁位移（气隙厚度）等因素对作动器电磁吸力和响应速度的影响。结果表明，电磁吸力随着作动衔铁位移的增加而大幅度减小；倾角结构的铁芯设计能使作动器性能达到最佳，且铁芯的倾斜角度为50°时，电磁吸力有最大值3071N。

Structural Optimization and Dynamic Analysis of Single-direction Electro-permanent Magnetic Actuator

A new type of single-direction electro-permanent magnetic actuator was designed, with characteristics of low energy consumption, large electromagnetic attractive force, and fast response. The effects of actuator structure parameters such as the multi teeth structure, plane structure, and general structure of core, tilt angle of the core, and armature displacement on electromagnetic attractive force and response speed of actuator are studied by Finite Element Analysis (FEA). It was found that electromagnetic attractive force decreases with the increase of the armature displacement during the operation process of the actuator, the iron core with inclined angle structure can make the actuator to get the best performance, and the electromagnetic attractive force could get maximum value 3071N when tilt angle of iron core is 50 °.