電磁アクチュエータの動特性に関する研究　　電気・機械エネルギー変換の考察

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タイトル別名
  • A study on dynamics of electromagnetic actuators. Consideration about electro-mechanical energy conversion.
  • デンジ アクチュエータ ノ ドウトクセイ ニ カンスル ケンキュウ デンキ キ
  • Consideration about Electro-mechanical Energy Conversion
  • 電気・機械エネルギー変換の考察

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抄録

This paper deals with dynamics of electromagnetic actuators. Self-inductance of an actuator usually increases with the approach of the armature to the coil. Through consideration about electromagnetic to mechanical energy conversion in the system, the equations can be composed which describe the behavior of the armature. For the simulation on dynamics of an armature motion self-inductance of some electromagnets is measured with various fixed armature position. Induced pulling force is just the half quantity of the product of second power of driving current and self-inductance gradient in the direction of armature motion. This is verified by experiment. According to the step response of driving current and armature motion, their kinetic characteristics are cleared. When the load of the system has only inertia of the armature, equation of motion and equilibrium equation of driving circuit are described by seven parameters. Solutions of these equations, armature displacement and driving current, nearly coincided with experimental result. The curve which denotes the relation between self-inductance and armature position can be changed by a certain parameter. This parameter is important in that it affects kinetic characteristics of an armature. The larger it becomes, the smaller counter emf becomes and shorter working time does.

収録刊行物

  • 精密工学会誌

    精密工学会誌 52 (9), 1560-1566, 1986

    公益社団法人 精密工学会

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