Project description
Hybrid liners are making skies quieter
While different aircraft types generate varying noise levels due to their operational characteristics, they are almost always loud. Moreover, modern fuel-efficient engines generate low-frequency noise that is even harder to mitigate. With the support of the Marie Skłodowska-Curie Actions programme, the HiBONTE project aims to develop a ‘boundary operator’ combining active and passive technologies. By hybridising electroacoustic resonators with acoustic metamaterials, the project aims to create a thin, tuneable liner capable of silencing a broad range of frequencies. HiBONTE will validate these hybrid solutions on representative testbeds. The results promise to bolster EU noise reduction policies and revolutionise sound control for both aircraft engines and ventilation systems. This brings the industry closer to a 65 % aircraft noise reduction target by 2050.
Objective
Aircraft noise has huge health and economic impacts, and the EU targets 65% of noise reduction by 2050. Meanwhile, restrictions in fuel consumption led to the Ultra-High-Bypass-Ratio turbofans, whose low-frequency noise signature challenges the scientific community. HiBONTE takes up this challenge, by designing innovative boundary noise control combining the most advanced know-hows on active and passive approaches. HiBONTE is the natural evolution of SmartAnswer MSCA-ITN (ESR12 task) and SALUTE H2020, both directed by the Ecole Centrale de Lyon (ECL), and the national project DAMA directed by the Università degli Studi di Napoli (UNINA). In ECL, an acoustic liner made of Electroacoustic Resonators (ERs) has been validated against turbofan noise. However, while efficient and tunable at low frequencies, high-frequencies are prevented by stability issues. Meanwhile, in UNINA, several passive concepts have been investigated, arriving at the conclusion that multistructured acoustic metamaterials (AM) hybridizing different noise control concepts, can improve global performances. However, AM, as all passive approaches, cannot escape the integral constraint requiring larger thickness at low frequencies. The need of hybridizing ERs and AM for broadband and tunable noise control, is evident, and times are mature to face this unprecedented challenge. HiBONTE will conceive an innovative boundary operator to be synthesized, for the first time, by a hybrid liner, which will be tested on highly representative testbenches in UNINA and ECL. Training activities will support each stage, and a unique multimodal flow-duct facility will be created in UNINA. The outcomes of HiBONTE are expected to be exploited by industrial stakeholders of both aircraft engines and Heating and Ventilation Air-Conditioning Systems, allowing to achieve the noise pollution reduction policies prescribed by the EU. Moreover, HiBONTE will prompt my career towards future grants and permanent academic positions.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
This project's classification has been human-validated.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
This project's classification has been human-validated.
- engineering and technology mechanical engineering vehicle engineering aerospace engineering aircraft
- natural sciences physical sciences acoustics
- natural sciences earth and related environmental sciences environmental sciences pollution
- engineering and technology environmental engineering energy and fuels
Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA)
MAIN PROGRAMME
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Topic(s)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) HORIZON-MSCA-2025-PF
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
80138 Napoli
Italy
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.