VIPER

Valve hIgh PERformances for flow control separation in aircraft

 Coordinatore CEDRAT TECHNOLOGIES SA 

 Organization address address: CHEMIN DU VIEUX CHENE 59
city: MEYLAN
postcode: 38240

contact info
Titolo: Dr.
Nome: Frank
Cognome: Claeyssen
Email: send email
Telefono: 33456580409
Fax: 33456580401

 Nazionalità Coordinatore France [FR]
 Totale costo 399˙875 €
 EC contributo 299˙906 €
 Programma FP7-JTI
Specific Programme "Cooperation": Joint Technology Initiatives
 Code Call SP1-JTI-CS-2012-01
 Funding Scheme JTI-CS
 Anno di inizio 2012
 Periodo (anno-mese-giorno) 2012-11-01   -   2016-04-30

 Partecipanti

# participant  country  role  EC contrib. [€] 
1    CEDRAT TECHNOLOGIES SA

 Organization address address: CHEMIN DU VIEUX CHENE 59
city: MEYLAN
postcode: 38240

contact info
Titolo: Dr.
Nome: Frank
Cognome: Claeyssen
Email: send email
Telefono: 33456580409
Fax: 33456580401

FR (MEYLAN) coordinator 299˙906.25

Mappa


 Word cloud

Esplora la "nuvola delle parole (Word Cloud) per avere un'idea di massima del progetto.

pulsed    first    valve    noise    sfwa    amplified    flow    emissions    off    displacement    wings    electronics    bandwidth    manufacturing    actuator    separation    sky    device    aircraft    tests    decrease    valves    onera    lift    performance    flight    ctec    customers    actuators    sensors    fuel    piezoelectric    mock    air    technologies    manufactured    jets    wing    active    fewer    cedrat    drag    transport    viper    space    quality    wp    voltage    partnership    derm    clean    reduce    consumption    meet    amount   

 Obiettivo del progetto (Objective)

'The Clean Sky call (CS-SFWA) requests the development, manufacturing and test of a mock-up of a flow control actuator subsystem. The mock-up shall simulate a flight-ready actuator prototype for controlling flow separation on the high lift devices of transport and business aircraft. CEDRAT TECHNOLOGIES (coordinator, SME) and ONERA/GMT/DERM (Major Sub Contractor, Research Establishment) forms a consortium using their shared experience on innovative electromechanical actuators and flow control valves to meet the SFWA requirements. CTEC has experience in developing actuators & systems (including valves) for embedded devices. Historic sector is space. Since 1995, CTEC has developed many space compliant systems in behalf of CNES, ESA and NASA. Other serious customers like Thales, Agusta Wesland, ONERA, MBDA… are sensitive to products robustness, quality and project management. CTEC owns patents, belongs to OSEO Excellence and is regularly granted with prises. DERM has already designed and manufactured several high-performance pulsed jets valves using CTEC actuators and electronics. Integrated inside models, the actuators allow DERM to perform flow control studies in wind tunnel conditions. CTEC and DERM have worked for 4 years in a close partnership on high-performance pulsed jets valves based on piezoelectric actuators. Results are very encouraging. CTEC and DERM have identified many potential progresses which could lead to higher performance valves. Lighter actuators & more efficient electronics lead to higher valve bandwidth, precise sensors lead to control quality, dedicated piezo material lead to better efficiency… CTEC & DERM are confident to meet the objectives of the call and have decided to establish the proposal VIPER. The following WBS is proposed: WP1 – Management WP2 – Concept Analysis of VIPER & resulting Trade-Off Matrix: WP3 – Detailed design of VIPER WP4 – Manufacturing of a 1:1 scale VIPER on a 400mm span WP5 – Tests of VIPER WP6 – Synthesis'

Introduzione (Teaser)

Keeping aircraft in flight for hours over hundreds of thousands of miles burns a tremendous amount of fuel, creating a significant amount of emissions. Novel active flow control solutions to ensure wings remain aerodynamically sound will have major benefits.

Descrizione progetto (Article)

Increasing concern on the part of the government and industry resulted in creation of the ambitious Clean Sky research partnership to develop technologies that reduce the environmental impact of air transport. Wings are an excellent target for such programmes because smooth laminar flow contributes to drag reduction that in turn reduces noise and vibration as well as fuel consumption and emissions related to efforts to steady the plane.

Flow separation refers to a sort of detachment of the air flow from the aircraft and it creates vortices and eddies that can increase drag. The EU is funding the project http://www.cedrat-technologies.com/fileadmin/user_upload/cedrat_groupe/Technologies/Actuators/Electro%20fluidic%20devices/Viper/VIPER_fiche-techno_v2.pdf (VIPER) (Valve high performances for flow control separation in aircraft) to minimise and delay flow separation through active electrical systems. This will maintain more favourable aerodynamic conditions over wing surfaces and will support more-electric aircraft with fewer hydraulic and pneumatic systems.

The VIPER consortium is composed of Cedrat Technologies and Onera, under the supervision of Fraunhofer ENAS. It is developing an active flow control device to produce a quasi-sonic (500 Hz) pulsed jet of air at the leading edge of the wing to increase lift and decrease drag. It is the first time that such high frequencies of pulsed air will be investigated. High-lift capability will reduce required thrust during take-off and landing, reducing noise and emissions in the vicinity of airports. Increased lift and decreased drag translate into lower fuel consumption and fewer emissions.

The technology exploits Amplified Piezoelectric Actuators (APA) from Cedrat Technologies. Piezoelectric materials convert a displacement into a voltage or vice versa. Amplified Piezoelectric Actuators are specialised piezoelectric actuators that essentially amplify the displacement relative to the voltage compared to traditional piezoelectric actuators. This actuator is the heart of the fast valve generating pulsed jets developed in partnership with Onera. In the first year, the team considered several configurations to meet the specifications and chose the most promising valve configuration. Some actuators with a composite shell instead of steel have been manufactured and tested, with positive results in terms of bandwidth, power electronics and integrated sensors, this chain being the subject of a publication for the Actuator 2014 International Conference and Exhibition on New Actuators and Drive Systems in Bremen, Germany.

Then the complete valve has been manufactured and assembled by Cedrat Technologies, allowing the start of the tests by Onera for the last year of the project.

VIPER's active flow control device will significantly decrease noise and emissions associated with air travel, providing important relief from the pressures faced by the public and the planet. Customers have demonstrated great enthusiasm for the actuator technology, which could have widespread application in addition to the current one.

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