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21 March 2019 Panel vibration suppression by using piezoelectric damping system
Shunji Suzuki, Toshizumi Yamaguchi
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Proceedings Volume 10967, Active and Passive Smart Structures and Integrated Systems XIII; 1096705 (2019) https://doi.org/10.1117/12.2512629
Event: SPIE Smart Structures + Nondestructive Evaluation, 2019, Denver, Colorado, United States
Abstract
A light weight and low vibration level panel have been achieved by using PDS (Piezoelectric Damping System). Piezoelectric ceramic actuator has small size and light weight performance owing to PZT (lead zirconate titanate) high force output density in volume and weight point of view. In this research, first we focused on ultra-low frequency (below 10Hz) region anti-resonance property of piezo actuator to piezo sensor transfer function. And then a distance between several actuator was adjusted for the purpose of control a frequency that anti-resonance was occurred. The result shows that over 20dB panel center vibration suppression was performed broadband frequency range. A feedback control was used on this system. Especially a utilization of anti-resonance prevented the oscillation of control system, leads to increase feedback gain. This panel with PDS’s vibration level is as same weight as ten times lager additional conventional damping material’s weight compare to PDS itself (actuators, sensors and controller).
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Shunji Suzuki and Toshizumi Yamaguchi "Panel vibration suppression by using piezoelectric damping system", Proc. SPIE 10967, Active and Passive Smart Structures and Integrated Systems XIII, 1096705 (21 March 2019); https://doi.org/10.1117/12.2512629
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KEYWORDS
Sensors
Actuators
Vibration control
Control systems
Ceramics
Feedback control
Ferroelectric materials
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