Treatment and effect of noise modelling in Bayesian operational modal analysis

• Main Authors: Ma, Xinda, Zhu, Zuo, Au, Siu-Kui
• Other Authors: School of Civil and Environmental Engineering
• Format: Article
• Language: English
• Published: 2022
• Subjects: Engineering::Civil engineering; Operational Modal Analysis; BAYOMA; Noise Disparity; Model Class Selection; Ambient Modal Identification; Uncertainty Law
• Online Access: https://hdl.handle.net/10356/162663
• Institution: Nanyang Technological University

Operational modal analysis (OMA) identifies the modal properties, e.g., natural frequencies, damping ratios and mode shapes, of a structure using ‘output-only’ ambient vibration data. Instrument noise need not be negligible in ambient vibration data, and it is often modelled statistically. Simple no...