와전류의 영향을 고려한 솔레노이드 액츄에이터의 동작특성 해석

Analysis of Operational Characteristic for Solenoid Actuator Considering Eddy Current Effects

Solenoid actuator's operating speed is affected by magnetic motive force, plunger mass, inductance, return spring constant, and eddy current. Recently, non-magnetic ring is generally used for improving the operational speed, because it is impossible that changing of any specified design factor and stacking of plunger steel. This paper represents the dynamic equations of solenoid actuator, simulations for the response characteristics, analysis of eddy current effect by using the induced time constant. And, we experiment for the operating characteristics in case of non-magnetic ring is exists and not exists in the plunger.