Title: A simple hybrid testing approach for dynamic analysis of civil structural control devices

Authors: J. Geoffrey Chase, Xiao Qi Chen, Kerry J. Mulligan, Geoffrey W. Rodgers, Rodney B. Elliott

Addresses: Department of Mechanical Engineering, University of Canterbury, Private Bag 4800, Christchurch, New Zealand. ' Department of Mechanical Engineering, University of Canterbury, Private Bag 4800, Christchurch, New Zealand. ' Department of Mechanical Engineering, University of Canterbury, Private Bag 4800, Christchurch, New Zealand. ' Department of Mechanical Engineering, University of Canterbury, Private Bag 4800, Christchurch, New Zealand. ' Department of Mechanical Engineering, University of Canterbury, Private Bag 4800, Christchurch, New Zealand

Abstract: This paper presents a simple and robust hybrid test system and outlines solutions to the major issues faced in developing any hybrid system. The overall approach is centred on the dSpace real-time control system development tool. The final system readily accommodates non-linear-single and multi-degree-of-freedom models and an operating bandwidth of 1 kHz. Experimental outcomes are based on studies of a linear single degree of freedom structure and a non-linear rocking wall system that includes impact loads and timing subject to random ground motions. The results illustrate the potential outcomes of full scale experiments but at a cost-effective level.

Keywords: hybrid testing; pseudo-dynamic testing; real-time control; virtual structures; structural control devices; nonlinear rocking wall; impact loads; timing; random ground motion.

DOI: 10.1504/IJAMECHS.2009.026334

International Journal of Advanced Mechatronic Systems, 2009 Vol.1 No.4, pp.288 - 298

Available online: 06 Jun 2009 *

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