Full state control via simulation for real-time dynamic substructuring test

Zhenyun Tang, Matt S Dietz, zhenbao li, Colin Anthony Taylor

Research output: Contribution to conferenceConference Paper

Abstract

The stability and accuracy of real time dynamic substructuring (RTDS) test are determined by the dynamics of the substructures??hysical and numerical??nd especially by those of the transfer system ??the actuators or shaking table and its controller. When a transfer system works in low frequency band, its dynamics can be reduced to a pure time delay and nulled by delay compensation. However, the frequency-dependent magnitude and phase errors that exist in the more complex RTDS test when higher frequency is required or shaking tables are used as transfer system, are beyond the scope of delay compensation. Much attention has recently been focused on developing mathematical models to represent the dynamics of servo-hydraulic systems. If such models are inverted, they can conceivably be used to cancel the magnitude and phase errors. In the work, this conception is used to develop a new controller for RTDS test. Based on the Inverse Dynamics Compensation via Simulation and full-state feedback control, the new controller called Full State Compensation via Simulation (FSCS) for RTDS test was proposed. Both analytical and experimental investigation demonstrated that FSCS can compensate for both the phase lag and magnitude errors associated with complex transfer systems such as shaking tables.
Original languageEnglish
Publication statusPublished - 2013
Event5th International COnference on Advances in Experimental Structural Engineering - Taipei, Taiwan
Duration: 8 Nov 20139 Mar 2015

Conference

Conference5th International COnference on Advances in Experimental Structural Engineering
CountryTaiwan
CityTaipei
Period8/11/139/03/15

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  • Cite this

    Tang, Z., Dietz, M. S., li, Z., & Taylor, C. A. (2013). Full state control via simulation for real-time dynamic substructuring test. Paper presented at 5th International COnference on Advances in Experimental Structural Engineering, Taipei, Taiwan.