SINOPSYS

Introduction

• Partners:

  LMS (BE), KUL (BE), ISMC (BE), INRIA (Rennes: Sigma2 and Rocquencourt: Metalau) (FR), SOPEMEA (FR), ECP/MSS/MAT (FR), Univ. Cracovie (PL), PZL-Swidnik (PL), Saab-Scania (SE).

• INRIA contribution: outline in ERCIM News.

• Monitoring: presentation at GRETSI'99 (Vannes, 13-17 Sept. 1999 - In French).

Design of the algorithms

Vibration monitoring is a particular instance of the problem of monitoring 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: [IMAC00a] [SYSID00a] [IMAC01a] [SP02] [JSV02]

  • IV ARMA modal analysis: [JSV91].

• Damage detection

  • From stochastic subspace modal analysis to damage detection: [IMAC97] [IMAC98a] [IMAC98b] [IMAC99a] [IMAC99b] [SP99] [Autom00] [JSV03] ! New

  • From IV ARMA modal analysis to damage detection: [Stat84] [MTNS85] [ISIT85] [Vilnius85] [CDC86b] [IT86] [Autom87] [AC87b] [IBM89] [ECC91].

• Damage diagnostics

  • Diagnostics without solving any inverse problem: [AC87a] [Safepr91a] [MSSP93] [JSV03] ! New

• Sensor placement

  • Optimal sensor location for damage detection and modal analysis: [CDC86a] [AC87c] [MSSP93].

Software

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

• LMS CADA-X implementation.

SINOPSYS Benchmarks

• Simulators and testbeds

  • Beam: [MSSP99a] [IMAC99b],

  • Steel frame: [MSSP99a] [IMAC99b],
  • Sports car: [MSSP99a] [IMAC99b],
  • In-flight rocket: [IMAC99a],
  • Paris MS760 aircraft structure: [MSSP99b].

• Real data

  • Sports car: [MSSP99a] [IMAC99b],

  • Helicopter,
  • The Swiss Z24 bridge: [SEM99 - paper 192] [F3-00] [IMAC01a] [SP02] [MSSP03b] ! New
  • Ariane V launcher: [IMAC01b].
  
  

Other examples

• Simulators and testbeds

  • Beam: [Safepr91a].

  • COST F3 steelquake benchmark: [JSV02] [MSSP03a] ! New

• Real data

  • Offshore platforms,

  • Paris railway boggies: [MSSP93],

  • Washing machine,

  • Turbo-alternators: [JSV91].
  
  

Numerical results

• Z24 bridge,
• Sports car.

Links

• Our complete publications list on this topic.

• Eureka project FLITE on the use of in-operation modal analysis methods for improving flight tests exploitation.

• Sigma2 research on continuous process monitoring, and other condition monitoring links.