Nonlinear modeling and control of a hydraulic seismic simulator

Devin P. Newell, Hongliang Dai, Michael K. Sain, Peter Quast, B. F. Spencer

Research output: Contribution to journalConference articlepeer-review


Hydraulic actuators, in combination with servo valves, are used to drive unidirectional seismic simulators. The fluid flow within the hydraulic actuator inherently leads to nonlinear behavior for the system. This paper presents a nonlinear model of the seismic simulator at the University of Notre Dame. The validity of the model is demonstrated experimentally. A control strategy uses a desired earthquake acceleration response to generate specific reference inputs by means of an open loop optimization. A Kalman-filter-based controller is employed. The control strategy is implemented and tested by experiment.

Original languageEnglish (US)
Pages (from-to)801-805
Number of pages5
JournalProceedings of the American Control Conference
StatePublished - Jan 1 1995
Externally publishedYes
EventProceedings of the 1995 American Control Conference. Part 1 (of 6) - Seattle, WA, USA
Duration: Jun 21 1995Jun 23 1995

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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