Variance estimation of modal parameters from output-only and input/output subspace-based system identification
نویسندگان
چکیده
منابع مشابه
Reference-based Stochastic Subspace Identification for Output-only Modal Analysis
When performing vibration tests on civil engineering structures, it is often unpractical and expensive to use arti"cial excitation (shakers, drop weights). Ambient excitation on the contrary is freely available (tra$c, wind), but it causes other challenges. The ambient input remains unknown and the system identi"cation algorithms have to deal with output-only measurements. For instance, realisa...
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متن کاملOutput-only modal parameter identification of civil engineering structures
The ambient vibration measurement is a kind of output data-only dynamic testing where the traffics and winds are used as agents responsible for natural or environmental excitation. Therefore an experimental modal analysis procedure for ambient vibration testing will need to base itself on output-only data. The modal analysis involving output-only measurements present a challenge that requires t...
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ژورنال
عنوان ژورنال: Journal of Sound and Vibration
سال: 2016
ISSN: 0022-460X
DOI: 10.1016/j.jsv.2016.05.037