We present the design and implementation of an extremum seeking based shake table controller, where the goal is to generate and track a sinusoid of given amplitude, frequency and phase. Advantages of an extremum seeking based controller over previous shake table controllers are that it is a modular design with respect to linear and nonlinear shaker-specimen dynamics, and with respect to different shaker-specimen combinations. In addition, it can handle time varying dynamics due to possible changes in the specimen during testing. Also, it does not require a plant model to operate, but has the capability to take advantage of minimal knowledge of the plant to improve transient performance.
Generation and Tracking of Sinusoids for Shake Table Control via Extremum Seeking
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Siranosian, AA, Krstic, M, & Bement, M. "Generation and Tracking of Sinusoids for Shake Table Control via Extremum Seeking." Proceedings of the ASME 2007 International Mechanical Engineering Congress and Exposition. Volume 9: Mechanical Systems and Control, Parts A, B, and C. Seattle, Washington, USA. November 11–15, 2007. pp. 117-126. ASME. https://doi.org/10.1115/IMECE2007-42910
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