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VibSEA SIGNED

SEA Applied to the Prediction of High Frequency Vibrations in Aircraft Engines

Total Cost €

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EC-Contrib. €

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Partnership

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 VibSEA project word cloud

Explore the words cloud of the VibSEA project. It provides you a very rough idea of what is the project "VibSEA" about.

inverse    consumption    decay    sea    complexity    junctions    join    manufacture    efficiency    counter    statements    10khz    numerical    scope    rate    proven    vibrations    fuel    designed    initial    hardware    subsystems    excitations    esi    incorporates    practices    mechanical    bypass    expertise    parts    geared    campaign    transfers    ultra    update    computational    400hz    propagate    engaged    simulation    tests    innovative    accuracy    consists    relying    dispersion    engine    assumptions    evolutions    estimation    hf    complementary    techniques    finite    statistical    frequency    validation    stiffness    input    stand    frequencies    extensive    usually    fe    post    leader    optimization    vehicle    limitations    preparation    frame    vibrational    partitioning    experimental    damping    lower    tool    supporting    hence    predict    delivered    structure    cetim    energy    competences    consist    partitions    performances    loops    efficient    turbofan    propagated    conductance    propulsive    vibration    models   

Project "VibSEA" data sheet

The following table provides information about the project.

Coordinator
CENTRE TECHNIQUE DES INDUSTRIES MECANIQUES 

Organization address
address: AVENUE FELIX LOUAT 52
city: SENLIS CEDEX
postcode: 60304
website: http://www.cetim.fr

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country France [FR]
 Total cost 848˙459 €
 EC max contribution 848˙458 € (100%)
 Programme 1. H2020-EU.3.4.5.5. (ITD Engines)
 Code Call H2020-CS2-CFP08-2018-01
 Funding Scheme CS2-RIA
 Starting year 2019
 Duration (year-month-day) from 2019-04-01   to  2022-03-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    CENTRE TECHNIQUE DES INDUSTRIES MECANIQUES FR (SENLIS CEDEX) coordinator 495˙128.00
2    ENGINEERING SYSTEM INTERNATIONAL SAS FR (RUNGIS) participant 353˙330.00

Map

 Project objective

Designed to achieve reduction in fuel consumption, the Ultra-High Bypass and High Propulsive Efficiency Geared Turbofan engine incorporates evolutions likely to produce high frequency (HF) vibration excitations which propagate through the structure. Numerical simulation is an efficient tool to control vibrations hence supporting the mechanical design. Where Finite Element (FE) based approaches show limitations due to computational hardware performances and HF dispersion management, Statistical Energy Analysis (SEA) stand as proven and effective method for this frequency range to predict the vibrational energy transfers across partitions – subsystems – of a structure. Challenges of SEA modelling consist of the structure partitioning which usually requires expertise and the accuracy loss at lower frequencies where the high stiffness of parts or complexity of junctions counter the method initial assumptions. Those statements depend strongly on the studied structure, therefore the objective of the proposed project is to develop and demonstrate a SEA modelling process to predict the vibration propagated in a typical complex engine frame. In this scope, best modelling practices from detailed numerical analysis are engaged to both support an extensive test campaign preparation including test vehicle design and manufacture, and produce models covering the target frequency range: from 400Hz to 10kHz. A crucial phase consists in the validation and update of these models from tests post-processing techniques and known methods such as Experimental SEA, Decay Rate damping estimation or input conductance as well as innovative inverse approaches relying on optimization loops. From the comprehensive comparison of these different methods with tests results, a best methods and associated modelling practices are delivered to the topic leader. CETIM and ESI join their complementary competences to develop the modelling and experimental know how applied to the HF vibrations assessment.

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The information about "VIBSEA" are provided by the European Opendata Portal: CORDIS opendata.

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