유공압시스템학회논문집 (Transactions of The Korea Fluid Power Systems Society)
- 제2권3호
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- Pages.1-5
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- 2005
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- 1738-3315(pISSN)
비례솔레노이드 형상 최적설계에 관한 연구
A Study on Shape Optimization of Electro-Magnetic Proportional Solenoid
초록
There are two types of solenoid actuator for force and position control of the fluid power system. One is an on-off solenoid actuator and the other is an electro-magnetic proportional actuator. They have some different characteristics for attraction force according to solenoid shape. Attraction force of the on-off solenoid actuator only depends on flux density. And the stroke-force characteristics of the proportional solenoid actuator are determined by the shape of the control cone. In this paper, steady state characteristics of the solenoid actuator for electro-hydraulic proportional valve determined by the shape of control cone are analyzed using finite element method and it is confirmed that the proportional solenoid actuator has a constant attractive force in the control region independently on the stroke position. And the shape of control cone is optimized using 1+1 evolution strategy to get a constant force. In the optimization algorithm, control cone length, thickness and taper length are used as a design parameter.
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