Reference-based Stochastic Subspace Identification for Output-only Modal Analysis

  title={Reference-based Stochastic Subspace Identification for Output-only Modal Analysis},
  author={Bart Peeters},
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, realisation algorithms can be used: originally formulated for impulse responses they were easily extended to… CONTINUE READING
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