Integral control of collocated smart structures

Sumeet S. Aphale; Andrew J. Fleming; S. O. Reza Moheimani

doi:10.1117/12.715477

27 April 2007 Integral control of collocated smart structures

Sumeet S. Aphale, Andrew J. Fleming, S. O. Reza Moheimani

Proceedings Volume 6525, Active and Passive Smart Structures and Integrated Systems 2007; 652521 (2007) https://doi.org/10.1117/12.715477
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2007, San Diego, California, United States

Abstract

This paper introduces a simple and robust technique for vibration control in smart structures with collocated sensors and actuators. The technique is called Integral Resonant Control (IRC). We show that by adding a direct feed-through to a collocated system, the transfer function can be modified from containing resonant poles followed by interlaced zeros, to zeros followed by interlaced poles. This structure permits the direct application of integral feedback and results in good stability and damping performance. To alleviate the problems due to unnecessarily high controller gain below the first mode, a slightly complicated second-order controller is also discussed. A piezoelectric laminate cantilever beam used to test the proposed control scheme exhibits up to 24 dB modal damping over the first eight modes.

Citation Download Citation

Sumeet S. Aphale, Andrew J. Fleming, and S. O. Reza Moheimani "Integral control of collocated smart structures", Proc. SPIE 6525, Active and Passive Smart Structures and Integrated Systems 2007, 652521 (27 April 2007); https://doi.org/10.1117/12.715477

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

Includes PDF, HTML & Video, when available