Achievable precision of close modes in operational modal analysis : wide band theory

• Main Authors: Au, Siu-Kui, Li, Binbin, Brownjohn, James M. W.
• Other Authors: School of Civil and Environmental Engineering
• Format: Article
• Language: English
• Published: 2020
• Subjects: Engineering::Civil engineering; Ambient Modal Identification; BAYOMA
• Online Access: https://hdl.handle.net/10356/143871
• Institution: Nanyang Technological University

This work takes up the challenge of deriving the ‘uncertainty law’ for close modes, i.e., closed form analytical expressions for the remaining uncertainty of modal parameters identified using (output-only) ambient vibration data. In principle the uncertainty law can be obtained from the inverse of t...