FliTE

Introduction

• Objective: Improving the exploitation of flight test data, enabling more direct exploration of the flight domain, with improved confidence and at reduced cost.

  • Exploiting test data under natural excitation conditions (e.g. turbulence), without artificial tail fin excitation.
  • Developing on-line, in-flight test data processing algorithms.

• Partners:

  • SOPEMEA (FR),
  • INRIA (Rennes: Sigma2 and Rocquencourt: Metalau) (FR),
  • AIRBUS France (FR),
  • Dassault Aviation (FR),
  • LMS (BE),
  • KUL (BE),
  • VUB (BE),
  • AGH (PL),
  • PZL-Mielec (PL),
  • ILOT (PL).

INRIA contribution - Design of the algorithms

Structural analysis is a particular instance of the problem of estimating the eigenstructure (eigenvalues, and observed components of eigenvectors) of the state transition matrix of a linear dynamical system under nonstationary excitation.

• Modal analysis

  • Stochastic subspace-based modal analysis under nonstationary excitation: [ASME01]
  • Multi-patch version of stochastic subspace modal analysis under nonstationary excitation: [SP02] [JSV02]

• Structural monitoring

  • From stochastic subspace modal analysis to structural monitoring: [Autom00] [SP99] [JSV04] ! New

  • From stochastic subspace modal analysis to flutter monitoring: [JGCD05] ! New

Software

• Free downloadable software: Scilab modal analysis and vibration monitoring toolbox: [IMAC00b] [SYSID03b] 

• LMS CADA-X implementation.

FliTE Benchmarks

• Simulators

• Real data

  • In-flight data
  • Ground vibration test data

Infos and links

• FliTE partners restricted access webpage.

• FliTE has completed. A follow-up Eurêka project FliTE2 has been labelled on January 20, 2005.

• ACI S&I project CONSTRUCTIF on statistical rejection of environmental effects in structural health monitoring.
  

• Eureka project SINOPSYS on in-operation modal analysis and monitoring methods for damage detection and localization (Completed).

• A new project-team SISTHEM (Statistical Inference for STructural HEalth Monitoring) has been launched at IRISA.
  

• Sigma2 complete publications list on structural analysis, monitoring and damage detection and localization.
• Sigma2 research on continuous process monitoring, and other condition monitoring links.