Piezocomposite SmartPanels for active control of underwater vibration and noise

Richard L. Gentilman; Daniel Fiore; Robert Torri; James Glynn

doi:10.1117/12.310640

16 June 1998 Piezocomposite SmartPanels for active control of underwater vibration and noise

Richard L. Gentilman, Daniel Fiore, Robert Torri, James Glynn

Proceedings Volume 3326, Smart Structures and Materials 1998: Industrial and Commercial Applications of Smart Structures Technologies; (1998) https://doi.org/10.1117/12.310640
Event: 5th Annual International Symposium on Smart Structures and Materials, 1998, San Diego, CA, United States

Abstract

Piezocomposite SmartPanels, consisting of 1-3 actuators and pressure sensors and net-shape PZT accelerometers in a large area, low profile panel, have been fabricated and evaluated. Single layer and two-layer 100 x 100 mm and 250 x 250 mm SmartPanels have been tested for actuator authority, surface displacement uniformity, sensor-actuator coupling, and surface vibration reduction. Single layer SmartPanels have demonstrated a broad band 20 dB underwater surface vibration reduction. Current development activities include electronics integration for surface mounted SmartPanels and investigation of SmartPads in hybrid active-passive vibration isolation mounts. SmartPanels draw upon PZT injection molding technology, which is used to produce cost- effective and robust 1-3 piezocomposite materials. The piezocomposites are used extensively for SonoPanel transducers in a number of sensor and actuator applications. SonoPanels are qualified for US Navy applications, based on successful completion of pressure and shock tests, and are available in sizes up to 750 x 750 mm. Applications and performance for SmartPanels and SonoPanels are descried, including multi-element arrays, velocity sensors, and underwater vibration and noise reduction devices.

Citation Download Citation

Richard L. Gentilman, Daniel Fiore, Robert Torri, and James Glynn "Piezocomposite SmartPanels for active control of underwater vibration and noise", Proc. SPIE 3326, Smart Structures and Materials 1998: Industrial and Commercial Applications of Smart Structures Technologies, (16 June 1998); https://doi.org/10.1117/12.310640

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