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Paper details
Number 1 - March 1998
Volume 8 - 1998
Composite adaptive SMC of nonlinear base isolated buildings with actuator dynamics
Ningsu Luo, Manuel De La Sen, José Rodellar
Abstract
This paper addresses the problem of designing a robust active controller for nonlinear base isolated building structures in the presence of unknown seismic excitations, parametric uncertainties and actuator dynamics. A simple adaptation
law is introduced to get available upper bounds for the unknown seismically excited nonlinearities. Adaptive composite output feedback sliding mode control schemes are proposed to drive the displacements of the base and structure to
their zero equilibrium positions. A numerical simulation example is presented to illustrate the effectiveness of the proposed strategies to a ten-storey base isolated structure under the El Centro earthquake.
Keywords
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