| タイトル | Experimental Comparison of two Active Vibration Control Approaches: Velocity Feedback and Negative Capacitance Shunt Damping |
| 本文（外部サイト） | http://hdl.handle.net/2060/20140002443 |
| 著者（英） | Beck, Benjamin; Schiller, Noah |
| 発行日 | 2013-08-26 |
| 言語 | eng
eng |
| 内容記述 | This paper outlines a direct, experimental comparison between two established active vibration control techniques. Active vibration control methods, many of which rely upon piezoelectric patches as actuators and/or sensors, have been widely studied, showing many advantages over passive techniques. However, few direct comparisons between different active vibration control methods have been made to determine the performance benefit of one method over another. For the comparison here, the first control method, velocity feedback, is implemented using four accelerometers that act as sensors along with an analog control circuit which drives a piezoelectric actuator. The second method, negative capacitance shunt damping, consists of a basic analog circuit which utilizes a single piezoelectric patch as both a sensor and actuator. Both of these control methods are implemented individually using the same piezoelectric actuator attached to a clamped Plexiglas window. To assess the performance of each control method, the spatially averaged velocity of the window is compared to an uncontrolled response. |
| NASA分類 | Acoustics |
| レポートNO | NF1676L-16142
NF1676L-16142 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
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