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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. €

0

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.

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

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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