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COMPANY RESTRICTED | NOT EXPORT CONTROLLED | NOT CLASSIFIEDAlessandro Dell’Amico
Digital Hydraulic Actuator for Flight Control
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Innovative solution for high energy efficiency, reliability and safety
Alessandro Dell’Amico, PhDSaab AB, Linköping University
COMPANY RESTRICTED | NOT EXPORT CONTROLLED | NOT CLASSIFIEDAlessandro Dell’Amico
Background• Development and investigation of the
Digital Hydraulic Actuator for Flight Control
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• System integration• Industrial support• Requirements
• Specialized knowledge• Actuation and mechatronics• Dissemination
• Specialized knowledge• Digital hydraulics• Laboratory
• Sensors• Diagnostics
COMPANY RESTRICTED | NOT EXPORT CONTROLLED | NOT CLASSIFIEDAlessandro Dell’Amico
Road to successful collaboration
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System integration
Industrial support
Requirements
Mechatronics
Digital hydraulics
Laboratory Sensors
Diagnosis
Iron Bird
2012
Actuation
Safety analysis
2015 2018
CISB scholarships:3 doctorates1 post doc
CISB travel:Professor visits
Student projects:collaboration Master thesis
ITA professors chair
Exchange students from Brazil1 undergraduate1 master4 PhD
1 visiting professor
Exchange students from Sweden8 undergraduate3 master1 PhD
2 visiting professors
Student project
COMPANY RESTRICTED | NOT EXPORT CONTROLLED | NOT CLASSIFIEDAlessandro Dell’Amico
Funding• Sweden’s Innovation Agency, Vinnova
• Saab AB
• Foundation for Support of Research and Innovation of Santa Catarina, FAPESC
• CERTI
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COMPANY RESTRICTED | NOT EXPORT CONTROLLED | NOT CLASSIFIEDAlessandro Dell’Amico
What’s the problem?
• Throttle control• Leakage• Distribution• Fluid conditioning• Maintenance
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Energy losses!
COMPANY RESTRICTED | NOT EXPORT CONTROLLED | NOT CLASSIFIEDAlessandro Dell’Amico
Technology Assessment
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Energy EfficientActuation Systems
MEADigital Hydraulic What
HowWhen?
Multi-mode hydraulics
Nextstep
COMPANY RESTRICTED | NOT EXPORT CONTROLLED | NOT CLASSIFIEDAlessandro Dell’Amico
What’s Digital Hydraulics?
• Discretized hydraulic system• Components
• On/off valves• Output
• Flow• Force
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• Higher efficiency• Higher reliability• Easier maintenance
Expected outcome
COMPANY RESTRICTED | NOT EXPORT CONTROLLED | NOT CLASSIFIEDAlessandro Dell’Amico
Digital Hydraulic Actuator, DHA
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Servo hydraulic actuatorDigital hydraulic actuator
COMPANY RESTRICTED | NOT EXPORT CONTROLLED | NOT CLASSIFIEDAlessandro Dell’Amico
• Low-level control strategies• Design and manufacturing of test bed• Proof-of-concept• Energy consumption study of the digital
system• Aircraft simulation with the DHA• Safety and reliability analyses and
comparison with conventional system
Technical Results
• Conceptual study on how to utilizeDigital Hydraulics for aircraftapplications
• Aircraft simulation with Digital Hydraulics
• Reference system and requirements• Solutions assessment in full system
simulations
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COMPANY RESTRICTED | NOT EXPORT CONTROLLED | NOT CLASSIFIEDAlessandro Dell’Amico
Digital Hydraulic Actuator, DHA
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Digital Actuator
Force Actuator (Load)
Digital Control
Manifold
PressureSources
Pressurereducing
valve
Old test bench (spring load) New test bench (hydraulic load)
COMPANY RESTRICTED | NOT EXPORT CONTROLLED | NOT CLASSIFIEDAlessandro Dell’Amico
Publications (published and planned)Total for project:• Conference papers and presentations
• 2 published• 3 planned• 3 presentations
• Journal papers• 4 planned
• Master theses• 2 in Sweden• 1 in Brazil as joint thesis• 3 in Brazil (1 in progress)
• PhD dissertation• 1 in Brazil
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COMPANY RESTRICTED | NOT EXPORT CONTROLLED | NOT CLASSIFIEDAlessandro Dell’Amico
Lessons Learned• Established network very helpful• Funding important to create mobility• Physical meetings synchronized with conferences, etc• Communication
• Mail: when needed• Web-meetings: 3-4 times a year• Physical meetings: 2-3 times a year
• High level coordination important• Funding• Application procedures
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COMPANY RESTRICTED | NOT EXPORT CONTROLLED | NOT CLASSIFIEDAlessandro Dell’Amico
ContactProject [email protected]
Scientific leader – [email protected]
Scientific leader – [email protected]
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