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Modelling and simulation of self-regulating pneumatic valves

Pollok, Alexander and Casella, Francesco (2017) Modelling and simulation of self-regulating pneumatic valves. Mathematical and Computer Modelling of Dynamical Systems. Taylor & Francis. DOI: http://dx.doi.org/10.1080/13873954.2017.1298623 ISSN 1387-3954

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Official URL: http://www.tandfonline.com/doi/full/10.1080/13873954.2017.1298623

Abstract

In conventional aircraft energy systems, self-regulating pneumatic valves (SRPVs) are used to control the pressure and mass flow of the bleed air. The dynamic behavior of these valves is complex and dependent on several physical phenomena. In some cases, limit cycles can occur, deteriorating performance. This paper presents a complex multi-physical model of SRPVs implemented in Modelica. First, the working-principle is explained, and common challenges in control-system design-problems related to these valves are illustrated. Then, a Modelica-model is presented in detail, taking into account several physical domains. It is shown, how limit cycle oscillations occurring in aircraft energy systems can be reproduced with this model. The sensitivity of the model regarding both solver options and physical parameters is investigated.

Item URL in elib:https://elib.dlr.de/111701/
Document Type:Article
Title:Modelling and simulation of self-regulating pneumatic valves
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Pollok, Alexanderalexander.pollok (at) dlr.deUNSPECIFIED
Casella, Francescopolitecnico di milanoUNSPECIFIED
Date:2017
Journal or Publication Title:Mathematical and Computer Modelling of Dynamical Systems
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :http://dx.doi.org/10.1080/13873954.2017.1298623
Publisher:Taylor & Francis
ISSN:1387-3954
Status:Published
Keywords:Modelica, Thermofluid, Modeling, Friction, Electrohydraulic, Hydraulic
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Systems and Cabin
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of System Dynamics and Control > Aircraft System Dynamics
Deposited By: Pollok, Dipl.-Ing. Alexander
Deposited On:16 Aug 2017 17:11
Last Modified:23 Feb 2019 00:21

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