Negative capacitance shunts for vibration control and suppression of reactive input power on rectangular panels

Kenneth A. Cunefare

doi:10.1117/12.720341

27 April 2007 Negative capacitance shunts for vibration control and suppression of reactive input power on rectangular panels

Kenneth A. Cunefare

Author Affiliations +

Proceedings Volume 6525, Active and Passive Smart Structures and Integrated Systems 2007; 65252A (2007) https://doi.org/10.1117/12.720341
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2007, San Diego, California, United States

Abstract

Piezoelectric patches shunted with a negative capacitance circuit represent an effective broadband active control methodology. Recent developments have shown that a wave-based tuning of such shunts applied to beams yields varying levels of control depending upon the configuration, with the most effective configuration being that of a shunt at the root of the beam. That configuration yielded effectively an anechoic termination. The effectiveness of the different configurations may be interpreted through their ability to couple to and suppress the reactive input power delivered by a point excitation, as is demonstrated in this paper. The reactive input power suppression concept is extended to the case of vibration suppression on a rectangular panel, and is shown to predict significant vibration suppression capability.

Citation Download Citation

Kenneth A. Cunefare "Negative capacitance shunts for vibration control and suppression of reactive input power on rectangular panels", Proc. SPIE 6525, Active and Passive Smart Structures and Integrated Systems 2007, 65252A (27 April 2007); https://doi.org/10.1117/12.720341

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