Direct drive servovalves actuated by amplified piezo-stacks: Assessment through a detailed numerical analysis

Paolo Tamburrano; Elia Distaso; Andrew R. Plummer; Francesco Sciatti; Pietro De Palma; Riccardo Amirante

doi:10.3390/act10070156

Direct drive servovalves actuated by amplified piezo-stacks: Assessment through a detailed numerical analysis

Paolo Tamburrano, Elia Distaso, Andrew R. Plummer, Francesco Sciatti, Pietro De Palma, Riccardo Amirante

Politecnico di Bari

Research output: Contribution to journal › Article › peer-review

8 Citations (SciVal)

Abstract

This paper presents a feasibility study using commercially available amplified piezostacks for the direct actuation of four-way three-position (4/3) direct drive servovalves. The prospect of using amplified piezo-stacks in place of linear force motors is very attractive by virtue of their fast response speed and low weight. Piezo-stacks equipped with mechanical amplification systems can give levels of displacement suitable for this application. A very effective amplification system has recently been produced by some manufacturers and is based on a temperature-independent diamond structure. This paper details simulations of a 4/3 servovalve directly actuated by such a piezoelectric actuator with a diamond structure. To this end, well-established equations, implemented in Simulink by means of the libraries of Simscape Fluids, are used. The proposed architecture shows simplicity of construction; in addition, very good step response speed and frequency response are predicted by the simulations.

Original language	English
Article number	156
Journal	Actuators
Volume	10
Issue number	7
DOIs	https://doi.org/10.3390/act10070156
Publication status	Published - 7 Jul 2021

Bibliographical note

Funding Information:
This research was supported by the European Commission under the Marie Curie IntraEuropean fellowship Programme. EC Grant Agreement no. 701336, H2020 MSCA Individual Fellowship: Development of a novel servovalve concept for aircraft (DNSVCFA).

Funding

This research was supported by the European Commission under the Marie Curie IntraEuropean fellowship Programme. EC Grant Agreement no. 701336, H2020 MSCA Individual Fellowship: Development of a novel servovalve concept for aircraft (DNSVCFA).

Keywords

Amplified piezo-stack
Direct drive
Servovalve

ASJC Scopus subject areas

Control and Systems Engineering
Control and Optimization

Access to Document

10.3390/act10070156Licence: CC BY

Cite this

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title = "Direct drive servovalves actuated by amplified piezo-stacks: Assessment through a detailed numerical analysis",

abstract = "This paper presents a feasibility study using commercially available amplified piezostacks for the direct actuation of four-way three-position (4/3) direct drive servovalves. The prospect of using amplified piezo-stacks in place of linear force motors is very attractive by virtue of their fast response speed and low weight. Piezo-stacks equipped with mechanical amplification systems can give levels of displacement suitable for this application. A very effective amplification system has recently been produced by some manufacturers and is based on a temperature-independent diamond structure. This paper details simulations of a 4/3 servovalve directly actuated by such a piezoelectric actuator with a diamond structure. To this end, well-established equations, implemented in Simulink by means of the libraries of Simscape Fluids, are used. The proposed architecture shows simplicity of construction; in addition, very good step response speed and frequency response are predicted by the simulations.",

keywords = "Amplified piezo-stack, Direct drive, Servovalve",

author = "Paolo Tamburrano and Elia Distaso and Plummer, {Andrew R.} and Francesco Sciatti and {De Palma}, Pietro and Riccardo Amirante",

note = "Funding Information: This research was supported by the European Commission under the Marie Curie IntraEuropean fellowship Programme. EC Grant Agreement no. 701336, H2020 MSCA Individual Fellowship: Development of a novel servovalve concept for aircraft (DNSVCFA). ",

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T2 - Assessment through a detailed numerical analysis

AU - Tamburrano, Paolo

AU - Distaso, Elia

AU - Plummer, Andrew R.

AU - Sciatti, Francesco

AU - De Palma, Pietro

AU - Amirante, Riccardo

N1 - Funding Information: This research was supported by the European Commission under the Marie Curie IntraEuropean fellowship Programme. EC Grant Agreement no. 701336, H2020 MSCA Individual Fellowship: Development of a novel servovalve concept for aircraft (DNSVCFA).

PY - 2021/7/7

Y1 - 2021/7/7

N2 - This paper presents a feasibility study using commercially available amplified piezostacks for the direct actuation of four-way three-position (4/3) direct drive servovalves. The prospect of using amplified piezo-stacks in place of linear force motors is very attractive by virtue of their fast response speed and low weight. Piezo-stacks equipped with mechanical amplification systems can give levels of displacement suitable for this application. A very effective amplification system has recently been produced by some manufacturers and is based on a temperature-independent diamond structure. This paper details simulations of a 4/3 servovalve directly actuated by such a piezoelectric actuator with a diamond structure. To this end, well-established equations, implemented in Simulink by means of the libraries of Simscape Fluids, are used. The proposed architecture shows simplicity of construction; in addition, very good step response speed and frequency response are predicted by the simulations.

AB - This paper presents a feasibility study using commercially available amplified piezostacks for the direct actuation of four-way three-position (4/3) direct drive servovalves. The prospect of using amplified piezo-stacks in place of linear force motors is very attractive by virtue of their fast response speed and low weight. Piezo-stacks equipped with mechanical amplification systems can give levels of displacement suitable for this application. A very effective amplification system has recently been produced by some manufacturers and is based on a temperature-independent diamond structure. This paper details simulations of a 4/3 servovalve directly actuated by such a piezoelectric actuator with a diamond structure. To this end, well-established equations, implemented in Simulink by means of the libraries of Simscape Fluids, are used. The proposed architecture shows simplicity of construction; in addition, very good step response speed and frequency response are predicted by the simulations.

KW - Amplified piezo-stack

KW - Direct drive

KW - Servovalve

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ER -

Direct drive servovalves actuated by amplified piezo-stacks: Assessment through a detailed numerical analysis

Abstract

Bibliographical note

Funding

Keywords

ASJC Scopus subject areas

Access to Document

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