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SALUTE

financed

Smart Acoustic Lining for UHBR Technologies Engines

Reducing noise emissions is one of the main design targets driving the development of new aircraft engines, and is therefore a key priority for the competitiveness of the aerospace sector. Ultra-high bypass ratios (UHBR) turbofan... see more

30/11/2022

Laboratoire d’Ecol...

2M€

Project Budget: 2M€

Project leader

CNRS UMR 5023 No se ha especificado una descripción o un objeto social para esta compañía.

PARTICIPATION DEPralty Sin fecha límite de participación.

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Financing granted El organismo H2020 notifico la concesión del proyecto The day 2022-11-30

JTI-CS2-2017-CfP07-ENG-01-26: Innovative acoustic fan frame liner... Specific Challenge:Acoustic fan frame liners are key technological components for Next Gen UHBR to e...

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7 Participantes

Laboratoire d’Ecologie des H...

838.67K€ | Leader

UNIVERSITE DU MANS

262.24K€ | participant

CNRS

191.11K€ | participant

UFC

56.05K€ | participant

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Project duration: 49 months Date Start: 2018-10-22
End date: 2022-11-30

Project leader

CNRS UMR 5023 No se ha especificado una descripción o un objeto social para esta compañía.

Project Budget 2M€

participation deadline Sin fecha límite de participación.

Project description Reducing noise emissions is one of the main design targets driving the development of new aircraft engines, and is therefore a key priority for the competitiveness of the aerospace sector. Ultra-high bypass ratios (UHBR) turbofan engines are expected to equip the next generation of aircraft to maximise efficiency. The noise generated by these engines will concern lower frequencies compared to existing engine technologies. Also, with a thinner nacelle, absorption performance are expected to drop at low frequencies. And with a shorter nacelle, less surface area will be available for acoustic treatments. UHBR engine technologies then represent significant challenges for the design of next-generation acoustic treatments. The SALUTE project will tackle these challenges by developing a new acoustic liner technology based on arrays of small loudspeakers or passive membranes. This innovative approach is able to deliver excellent sound absorption at low frequencies while remaining sufficiently small to fit into thin nacelle geometries. This development will be carried out on three different concepts, which will be compared and down-selected in the course of the project. Conventionally, these acoustic treatments were tested using 2D (i.e. flat) prototypes, which will constitute a baseline configuration of the project. The SALUTE project will go further by testing 3D prototypes with a geometry corresponding to a small-scale fan at the PHARE test facility. This is required to reach TRL4, but will present specific challenges in terms of manufacturing. Secondly, gaining more insight into the physical interaction between the transducers, the control system and the high-speed flow will be necessary. This will be achieved through multi-physics simulations coupling all these sub-systems. With four partners with proven track record of successful collaborative projects on the topic, the SALUTE project will benefit from the latest technological developments on smart acoustic liners.

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