Discrete-Time Sliding Mode Control on a Flexible Truss Structure

Abstract

Implementation of discrete-time sliding mode control on a sampled-data system leads to sliding motion in an O(T2) 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.