Variable structure control of shape memory alloy actuated flexible smart structure

K. Dhanalakshmi; M. Umapathy; D. Ezhilarasi

doi:10.1117/12.716066

13 April 2007 Variable structure control of flexible smart structure with shape memory alloy actuators

K. Dhanalakshmi, M. Umapathy, D. Ezhilarasi

Author Affiliations +

Proceedings Volume 6528, Nanosensors, Microsensors, and Biosensors and Systems 2007; 65281H (2007) https://doi.org/10.1117/12.716066
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2007, San Diego, California, United States

Abstract

This paper presents the design of reaching law based discrete time sliding mode control for the SMA actuated cantilever beam to suppress the vibration in the presence of external disturbance. A linear dynamic model of the SMA actuated cantilever beam structure is experimentally established using online ARX RLS system identification approach. A digital control system that consists of simulink modeling software and dSPACE 1104 controller board has been used for identification. The VSC controller is designed starting with the switching surface design. The eigen values of the reduced order system are located suitably so that it lies inside the unit circle and the system is stable. The performance of the controller for vibration suppression and disturbance rejection was evaluated through simulation by exciting the structure at resonance.

Citation Download Citation

K. Dhanalakshmi, M. Umapathy, and D. Ezhilarasi "Variable structure control of flexible smart structure with shape memory alloy actuators", Proc. SPIE 6528, Nanosensors, Microsensors, and Biosensors and Systems 2007, 65281H (13 April 2007); https://doi.org/10.1117/12.716066

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE