Vibration-based structural health monitoring using output-only measurements under changing environment

• Published in: Mechanical systems and signal processing Vol. 22; no. 1; pp. 34 - 56
• Main Authors: Deraemaeker, A., Reynders, E., De Roeck, G., Kullaa, J.
• Format: Journal Article
• Language: English
• Published: London Elsevier Ltd 2008; Elsevier
• Subjects: Automatic stochastic subspace identification; Damage detection; Environmental effects; Exact sciences and technology; Factor analysis; Fracture mechanics (crack, fatigue, damage...); Fundamental areas of phenomenology (including applications); Measurement and testing methods; Modal filters; Output-only measurements; Physics; Solid mechanics; Spatial filtering; Statistical process control; Structural and continuum mechanics; Structural health monitoring; Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...); Statistical process control; Output-only measurements; Factor analysis; Damage detection; Modal filters; Automatic stochastic subspace identification; Structural health monitoring; Spatial filtering; Environmental effects; Fourier transformation; Structure integrity; Vibration measurement; Modeling; Vibrometer; Failure analysis; Monitoring; Damaging; Control chart; Vibration; Probabilistic approach; Subspace method; Bridges; Mode filter; Medium effect; Signal processing; Environmental effect; Spatial filters; Defect detection

This paper deals with the problem of damage detection using output-only vibration measurements under changing environmental conditions. Two types of features are extracted from the measurements: eigenproperties of the structure using an automated stochastic subspace identification procedure and peak...