Implementation of nonlinear control algorithm for shaking table tests
Journal
International Conference on Advances in Experimental Structural Engineering
Journal Volume
2013-November
ISBN
9780000000002
Date Issued
2013
Author(s)
Abstract
Shaking table is one of the most realistic experimental method to simulate the nonlinear dynamic response of structural system under earthquake loads. Traditionally, the shaking table tests are controlled using linear controllers, which are designed to regulate linear systems. With the nonlinearity within the actuator and the specimen tested to highly nonlinear states, the traditional linear controller can no longer control the shaking table accurately. This paper focuses on the theory and implementation of a nonlinear algorithm, Sliding Mode Control (SMC), to regulate shaking table tests and compared its response to the traditional PID controller. The result shows that the proposed algorithm was able to provide excellent tracking for the shaking table testing, even when the specimen reached highly nonlinear states. This provides the needed demonstration to show that the proposed SMC controller is a viable and robust control algorithm to regulate the shaking table to test nonlinear systems. © 2013 Earthquake Engineering Research Institute. All rights reserved.
Subjects
Force control; Shaking table; Sliding mode control
Other Subjects
Dynamic response; Force control; Linear control systems; Linear systems; Robust control; Sliding mode control; Three term control systems; Experimental methods; Linear controllers; Nonlinear algorithms; Nonlinear control algorithm; Shaking table testing; Shaking table tests; Shaking tables; Sliding mode control(SMC); Controllers
Publisher
EUCENTRE
Type
conference paper