Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/11406
Title: Synthesis of vibration control and health monitoring of building structures under unknown excitation
Authors: He, J
Huang, Q
Xu, YL 
Keywords: Building structure
Extend Kalman filter
Health monitoring
Synthesis
Unknown external excitation
Vibration control
Issue Date: 2014
Publisher: Institute of Physics Publishing
Source: Smart materials and structures, 2014, v. 23, no. 10, 105025 How to cite?
Journal: Smart materials and structures 
Abstract: The vibration control and health monitoring of building structures have been actively investigated in recent years but often treated separately according to the primary objective pursued. In this study, a time-domain integrated vibration control and health monitoring approach is proposed based on the extended Kalman filter (EKF) for identifying the physical parameters of the controlled building structures without the knowledge of the external excitation. The physical parameters and state vectors of the building structure are then estimated and used for the determination of the control force for the purpose of the vibration attenuation. The interaction between the health monitoring and vibration control is revealed and assessed. The feasibility and reliability of the proposed approach is numerically demonstrated via a five-story shear building structure equipped with magneto-rheological (MR) dampers. Two types of excitations are considered: (1) the EI-Centro ground excitation underneath of the building and (2) a swept-frequency excitation applied on the top floor of the building. Results show that the structural parameters as well as the unknown dynamic loadings could be identified accurately; and, at the same time, the structural vibration is significantly reduced in the building structure.
URI: http://hdl.handle.net/10397/11406
ISSN: 0964-1726
EISSN: 1361-665X
DOI: 10.1088/0964-1726/23/10/105025
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