Counter-checking uncertainty calculations in Bayesian operational modal analysis with EM techniques

• Main Authors: Ma, Xinda, Au, Siu-Kui
• Other Authors: School of Civil and Environmental Engineering
• Format: Article
• Language: English
• Published: 2024
• Subjects: Engineering; Operational modal analysis; Hessian; EM algorithm; Hidden variable; Monte Carlo simulation
• Online Access: https://hdl.handle.net/10356/178836
• Institution: Nanyang Technological University

Bayesian operational modal analysis makes inference about the modal properties (e.g., natural frequency, damping ratio) of a structure using ‘output-only’ ambient vibration data. With sufficient data in applications, the posterior probability density function (PDF) of modal properties can be approxi...