Design and Modelling of a Novel Servovalve Actuated by a Piezoelectric Ring Bender

Lars Persson, Andrew Plummer, Christopher Bowen, Ian Brooks

Research output: Contribution to conferencePaper

8 Citations (Scopus)

Abstract

This paper describes the design, simulation and testing of a piezoelectric spool valve. An actuator has been connected to the valve and tested under closed loop control. A mathematical model of the valve was produced and a prototype of the valve was tested. The mathematical model is validated against the experimental data. Step and frequency responses for both the valve and actuator are presented. It was found that displacement of the hydraulic fluid by the ring bender had an impact on the valve performance. To reduce the effect of the piezoelectric hysteresis, closed loop spool position control was tested. A noticeable difference can be observed between open loop and closed loop performance
Original languageEnglish
Publication statusPublished - Oct 2015
EventASME/Bath Symposium on Fluid Power and Motion Control - Chicago, USA United States
Duration: 12 Oct 201514 Oct 2015

Conference

ConferenceASME/Bath Symposium on Fluid Power and Motion Control
CountryUSA United States
CityChicago
Period12/10/1514/10/15

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  • Cite this

    Persson, L., Plummer, A., Bowen, C., & Brooks, I. (2015). Design and Modelling of a Novel Servovalve Actuated by a Piezoelectric Ring Bender. Paper presented at ASME/Bath Symposium on Fluid Power and Motion Control, Chicago, USA United States.