Project description
Tackling the noise within aircraft
Is there a way to tackle noise inside tiltrotor aircraft? The lack of acoustic comfort in the passenger cabin is a demanding and challenging issue in this kind of aircraft. The EU-funded project, PIANO, aims to make progress on this question by bringing together Advanced Transfer Path Analysis (ATPA) and Active Noise Control (ANC) technologies. ATPA will be applied to get thorough knowledge of the vibro-acoustic characteristics of tiltrotors. Prior to this, a clustering technique will be implemented to divide the tiltrotor into a set of vibro-acoustic subsystems. Based on the outcomes of the ATPA, innovative ANC techniques will be applied to reduce tonal and broadband noise at a reasonable cost, while keeping an eye on the aircraft weight.
Objective
Interior noise in tiltrotor aircrafts is becoming more and more important. Customers are more aware of noise as a key element for comfort and health. This project aims to investigate two topics to further deepen the analysis and the improvement of interior noise in civil tilt rotors.
The first topic is the Advanced Transfer Path Analysis application in a tiltrotor. ATPA is a powerful analysis method to quantify noise and vibration paths in a complex structure, as well as differentiate air-borne from structure-borne paths.
Currently, simulation models based on SEA are widely used to predict aircraft interior noise. The accuracy of the input model parameters has a direct impact on the model results. The knowledge on how to model junctions is a key point to obtain a realistic model. The experimental characterization of the aircraft through ATPA has the objective to deduce the SEA factors.
As a first step, prior to the paths identification, the complex system has to be defined as a set of subsystems. A clustering technique based on the DTF matrix is proposed here, with the aim of dividing the studied system in vibroacoustic subsystems. Once the subsystems are well-defined, ATPA will be experimentally applied. This will provide a deep characterization of the system from a vibroacoustic point of view and will be used as input for SEA factors derivation.
The second topic is the mitigation of tonal noise through innovative active noise control techniques. Low frequency and tonal noise sources are difficult to be improved with classical passive solutions. Nowadays, ANC systems may reduce noise both locally or globally. Innovation is centered in achieving a remarkable reduction of tonal noise, without increasing too much weight and at a reasonable cost. A complete definition of the architecture and the components ready to be installed will be supplied.
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.
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.
- engineering and technology mechanical engineering vehicle engineering aerospace engineering aircraft
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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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H2020-EU.3.4. - SOCIETAL CHALLENGES - Smart, Green And Integrated Transport
MAIN PROGRAMME
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H2020-EU.3.4.5.4. - ITD Airframe
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Topic(s)
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.
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.
RIA - Research and Innovation action
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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) H2020-CS2-CFP10-2019-01
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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.
08035 Barcelona
Spain
The organization defined itself as SME (small and medium-sized enterprise) at the time the Grant Agreement was signed.
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.