Full simulation of a piezoelectric double nozzle flapper pilot valve coupled with a main stage spool valve

Paolo Tamburrano, Riccardo Amirante, Elia Distaso, Andrew Plummer

Research output: Contribution to conferencePaperpeer-review

21 Citations (SciVal)

Abstract

This paper develops a detailed simulation model, realized by the software Simscape, which can be a powerful tool to analyze the performance of a double nozzle flapper valve actuated by a piezoelectric ring bender. The particularity of this valve is that the use of the torque motor and flexure tube is avoided, thus reducing the complexity, manufacturing time and cost of the valve assembly. The model accounts for all the real phenomena present in the valve, such as fluid compressibility and fluid viscosity. The viability of the valve concept is validated by step tests simulated at different valve openings. It is shown that the response time obtained for a supply pressure of 210 bar and necessary to reach 90% of the maximum opening degree (corresponding to a maximum spool position of 1mm and maximum flow rate of 60 l/min) is only 6 ms, which is comparable with typical commercially available double nozzle flapper valves, but with the advantage of having removed critical components such as the torque motor and the flexure tube.
Original languageEnglish
Pages487-494
Number of pages8
DOIs
Publication statusPublished - 1 Aug 2018
Event73rd Conference of the Italian Thermal Machines Engineering Association -
Duration: 12 Sept 201814 Sept 2018

Conference

Conference73rd Conference of the Italian Thermal Machines Engineering Association
Period12/09/1814/09/18

Bibliographical note

This research has been supported by the European Commission under the Marie Curie Intra-European fellowship Programme. EC Grant Agreement n. 701336, H2020 MSCA Individual Fellowship: Development of a novel servovalve concept for aircraft (DNSVCFA). Start date: 01/09/2017, End date: 19/10/2019, Location of the project: University of Bath

Keywords

  • Servovalves
  • piezoelectric
  • ring bender

ASJC Scopus subject areas

  • General Energy

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