@inproceedings{c47414e5f158461fb14f7f2ec4556db4,
title = "Improved model-based feedforward and feedback control for real-time hybrid simulation",
abstract = "Model-based feedforward-feedback tracking control has been shown to be one of the most effective methods for real-time hybrid simulation (RTHS). This approach is derived based on a linear time-invariant model of the closed-loop servo-hydraulic system. However, the closed-loop system is intrinsically nonlinear and time-varying when nonlinear experimental components are tested such as magnetorheological dampers. In this paper, an adaptive control scheme of a model-based feedforward-feedback controller is proposed to further improve the tracking performance of the actuator. This adaptive strategy is used to estimate the system parameters for the feedforward controller online during a test. The robust stability of this adaptive controller is provided by introducing Routh{\textquoteright}s stability criteria and applying the parameter projection algorithm. The proposed control scheme is shown to attain better tracking performance. Finally, RTHS of a nine-story shear building controlled by a full-scale MR damper is carried out to verify the efficacy of the proposed control method. The adaptive feedforward-feedback control scheme is demonstrated to be effective for structural performance assessment using RTHS.",
keywords = "Adaptive control, MR damper, Model-based tracking control, Real-time hybrid simulation",
author = "Chen, {Pei Ching} and Chang, {Chia Ming} and Spencer, {Billie F.} and Tsai, {Keh Chyuan}",
note = "Publisher Copyright: {\textcopyright} 2013 Earthquake Engineering Research Institute. All rights reserved.; 5th International Conference on Advances in Experimental Structural Engineering, AESE 2013 ; Conference date: 08-11-2013 Through 09-11-2013",
year = "2013",
language = "English (US)",
series = "International Conference on Advances in Experimental Structural Engineering",
publisher = "EUCENTRE",
booktitle = "5th International Conference on Advances in Experimental Structural Engineering, AESE 2013",
}