NEES @ UC San Diego

Acceleration Tracking Performance of Table

To track the acceleration performance of the table and improve the table response, the MTS 469D control system includes the AIC (Adaptive Inverse Control) and OLI (On-line Iteration) adaptive control techniques.

AIC is a control compensation technique that augments a fixed-gain controller to correct for closed loop gain and phase irregularities in order to improve control fidelity. It measures control system dynamics directly and modifies the control compensation accordingly in real-time, making it possible to adapt to changing system dynamics.

OLI is a control technique that repeatedly modifies the command input to a control system on an individual sample-by-sample basis until the control system response is almost perfect replica of the desired command. OLI requires knowledge of transfer function of the equipment in order to compute a drive correction.

Acceleration Tracking of Performance of UCSD-NEES Shake Table [pdf]

NEHRPNSFNEEScommNEESIAS Accredited

The Large High-Performance Outdoor Shake Table is supported in part by the George E. Brown, Jr. Network for Engineering Simulation (NEES) program of the National Science Foundation under Award Number CMMI-0927178.

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