Noise control in a duct system with online-tuned shunted piezoeletric materials

Dominik Niederberger; Stanislaw Pietrzko; Manfred Morari

doi:10.1117/12.539469

29 July 2004 Noise control in a duct system with online-tuned shunted piezoeletric materials

Dominik Niederberger, Stanislaw Pietrzko, Manfred Morari

Proceedings Volume 5386, Smart Structures and Materials 2004: Damping and Isolation; (2004) https://doi.org/10.1117/12.539469
Event: Smart Structures and Materials, 2004, San Diego, CA, United States

Abstract

This paper presents an application of resonant piezoelectric shunt damping to reduce sound radiated by a clamped square aluminium plate. The plate is mounted in a duct system and excited by plane waves. The sound radiation of the plate is evaluated by measuring the volume velocity and radiated sound power. Results show a significant reduction of the radiated sound power, if the resonant shunt circuit is tuned around the first natural frequency of the plate. Additionally, the performance of the online-tuned resonant shunt for varying operating conditions is compared with a not online-tuned shunt. It is shown that the online-tuned shunt keeps optimal noise reduction for varying temperature.

Citation Download Citation

Dominik Niederberger, Stanislaw Pietrzko, and Manfred Morari "Noise control in a duct system with online-tuned shunted piezoeletric materials", Proc. SPIE 5386, Smart Structures and Materials 2004: Damping and Isolation, (29 July 2004); https://doi.org/10.1117/12.539469

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