- AutorIn
- Paolo Tamburrano Polytechnic University of Bari, Department of Mechanics, Mathematics and Management (DMMM), Italy
- Andrew R. PlummerUniversity of Bath, Centre for Power Transmission and Motion control (PTMC), UK
- Pietro De PalmaPolytechnic University of Bari, Department of Mechanics, Mathematics and Management (DMMM), Italy
- Elia Distaso
- Riccardo Amirante
- Titel
- Experimental and numerical study of a novel piezoelectric pilot stage for servovalves
- Zitierfähige Url:
- https://nbn-resolving.org/urn:nbn:de:bsz:14-qucosa2-712594
- Konferenz
- 12th International Fluid Power Conference (12. IFK). Dresden, October 12 – 14, 2020
- Quellenangabe
- Volume 3 – Conference - 3
Erscheinungsort: Dresden
Verlag: Technische Universität Dresden
Erscheinungsjahr: 2020
Bandnummer Schriftenreihe: 3
Seiten: 297-306
DOI: 10.25368/2020.8 - DOI
- https://doi.org/10.25368/2020.118
- Abstract (EN)
- Two - stage servovalves, despite being widely used in aircraft and industry because of their reliability and high performance, have a few disadvantages that are still unsolved at the state of the art, such as the power consumption caused by the quiescent flow (internal leakage) in the pilot stage, and the complexity and high number of parts of the torque motor assembly of the pilot stage. The solution to these problems can help to reduce costs, weight, power consumption, and to enhance the reliability and producibility as well as the performance of these valves. This paper presents a novel configuration of servovalve, which has the potential to overcome the above-mentioned issues. The proposed servo-valve includes a novel architecture for the pilot stage by using two piezo-electric actuators (ring benders). In this paper, the performance of this novel pilot stage is assessed. To this end, a valve prototype has been constructed and tested; the experimental results are also used to validate a numerical model obtained with the software Simscape Fluids. The results show that, acting on specific parameters, the performance of the piezo-valve can be very competitive, while ensuring very low internal leakage and complexity.
- Freie Schlagwörter (DE)
- 12. IFK, Servoventile, interne Leckage, Piezoaktoren, Ringbieger
- Freie Schlagwörter (EN)
- 12th International Fluid Power Conference, servovalves, internal leakage, piezoelectric actuators, ring bender
- Klassifikation (DDC)
- 620
- Klassifikation (RVK)
- ZQ 5460
- Publizierende Institution
- Technische Universität Dresden, Dresden
- Sonstige beteiligte Institution
- Dresdner Verein zur Förderung der Fluidtechnik e. V. Dresden, Dresden
- Version / Begutachtungsstatus
- publizierte Version / Verlagsversion
- URN Qucosa
- urn:nbn:de:bsz:14-qucosa2-712594
- Veröffentlichungsdatum Qucosa
- 26.06.2020
- Dokumenttyp
- Konferenzbeitrag
- Sprache des Dokumentes
- Englisch
- Lizenz / Rechtehinweis