A heuristic approach to output-only system identification under transient excitation

作者:

Highlights:

• Output-only system identification under non-white-noise excitation is addressed.

• The classical approach consists in using long records.

• The white-noise excitation assumption is trivially validated during free-vibration.

• An algorithm is developed to automatically find free-vibration record segments.

• The proposed approach requires short records, leading to hardware simplifications.

摘要

•Output-only system identification under non-white-noise excitation is addressed.•The classical approach consists in using long records.•The white-noise excitation assumption is trivially validated during free-vibration.•An algorithm is developed to automatically find free-vibration record segments.•The proposed approach requires short records, leading to hardware simplifications.

论文关键词:Structural health monitoring,Stochastic system identification,Output-only system identification,Free vibration,Heuristic search,bridge

论文评审过程:Received 4 July 2016, Revised 19 September 2016, Accepted 4 October 2016, Available online 5 October 2016, Version of Record 14 October 2016.

论文官网地址:https://doi.org/10.1016/j.eswa.2016.10.007