Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2012.10a
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- Pages.331-336
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- 2012
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- 1598-2548(pISSN)
Dynamic Modeling and Control of Directional Control Valve Using Piezostack Actuator
압전 작동기를 이용한 방향 제어 밸브의 동적 모델링 및 제어
- Jeon, Juncheol (Mechanical Engineering, Inha University) ;
- Han, Young-Min (Division of Automotive Engineering, Ajou Motor College) ;
- Nguyen, Quoc Hung (Mechanical Engineering, Inha University) ;
- Han, Seung-Hun (Mechanical Engineering, Inha University) ;
- Choi, Seung-Bok (Mechanical Engineering of Inha University)
- Published : 2012.10.27
Abstract
This paper proposes a new type of high-frequency directional valve controlled by the piezostack actuator associated with displacement amplifier. As a first step, a dynamic model of directional valve which can operate at 200 Hz with a flow rate of 12 l/min is derived by considering pressure drop and flow force. As a second step, an appropriate piezostack is selected by considering actuation force as well as field-dependent displacement. Subsequently, in order to control spool displacement and flow rate a proportional-derivative (PD) controller is designed based on the
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