Simultaneous state estimation and parameter tuning in a shear building with a magneto-rheological damper

作者：Jimenez Fabian Rene; Alvarez Icaza Luis^*

来源：Structural Control & Health Monitoring, 2009, 16(4): 483-502.

DOI：10.1002/stc.282

• adaptive observers
• magneto-theological dampers
• vibration control
• system identification
• real-time control

This work introduces an adaptive observer for a shear building with a magneto-rheological damper. The proposed observer is able to reconstruct, in real-time, storey displacement and velocity using measurements of absolute acceleration and, at the same time, it estimates all the structural parameters and relevant magneto-rheological damper parameters by means of a least-squares adaptive algorithm. Sufficient conditions for asymptotic tracking of the real variables are established using simple restrictions on the form of the observer's gain matrix and through a matrix inequality. This observer is intended to help in the implementation of semiactive control algorithms where displacement and velocity are used to determine the control action, or as a robust substitute of numerical integration in traditional vibration analyses where storey accelerations are the only available signals. Theoretical results were confirmed in small-scale experiments.

• 出版日期2009-6