Sliding Mode Control for a Membrane Mirror Strip Actuated Using Multiple Smart Actuators

Autor: Jamil M. Renno, Daniel J. Inman, C. Konda Reddy, Eric John Ruggiero
Rok vydání: 2007
Předmět:
Zdroj: Volume 10: Mechanics of Solids and Structures, Parts A and B.
DOI: 10.1115/imece2007-41016
Popis: The sliding mode technique is used to control the deformation of a membrane mirror strip. A membrane mirror strip is augmented with two macro fiber composite (MFC) bimorphs. The first bimorph is actuated in bending whereas the second is actuated in tension. Membrane strips are usually tensioned uniformly. However, the presence of the tension bimorphs induces a local tension at its location. The membrane strip is modeled as an Euler-Bernoulli beam under tensile load, whereas the MFCs are modeled as monolithic piezoceramics. To cast the system into a finite dimensional state space form, the finite elements method (FEM) is used. The control action is switched when the membrane strip approaches its original undeformed shape. Simulation results demonstrate the effectiveness of the proposed control law.Copyright © 2007 by ASME
Databáze: OpenAIRE