Implementation of discrete-time sliding mode control on a sampled-data system leads to sliding motion in an $OT2$ boundary layer of the discontinuity surface, where $T$ is the sampling period. A truss panel structure vibration control experiment is conducted to demonstrate the effectiveness of the proposed method. This paper utilizes a truncated model to characterize the models of interest and treats all the high frequency modes as disturbances. The experiment includes system identification, state observer design, and discrete-time sliding mode control.

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