Improved model-based feedforward and feedback control for real-time hybrid simulation

Pei Ching Chen, Chia Ming Chang, Billie F. Spencer, Keh Chyuan Tsai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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’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.

Original languageEnglish (US)
Title of host publication5th International Conference on Advances in Experimental Structural Engineering, AESE 2013
PublisherEUCENTRE
ISBN (Electronic)9780000000002
StatePublished - Jan 1 2013
Event5th International Conference on Advances in Experimental Structural Engineering, AESE 2013 - Taipei, Taiwan, Province of China
Duration: Nov 8 2013Nov 9 2013

Publication series

NameInternational Conference on Advances in Experimental Structural Engineering
Volume2013-November
ISSN (Electronic)2522-2503

Other

Other5th International Conference on Advances in Experimental Structural Engineering, AESE 2013
CountryTaiwan, Province of China
CityTaipei
Period11/8/1311/9/13

Keywords

  • Adaptive control
  • MR damper
  • Model-based tracking control
  • Real-time hybrid simulation

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

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