Structure-Borne Noise Reduction by Active Damping of a Radiating Panel

951322

05/01/1995

Event
SAE Noise and Vibration Conference and Exposition
Authors Abstract
Content
The effectiveness of positive position feedback (PPF) controllers to selectively damp a particular mode or a cluster of modes is demonstrated by controlling the vibration of a rectangular flexible plate. The modes of vibration of this plate occur in adjacent pairs. The plate is actuated by two patches of piezoelectric PZT actuators at two corners. The strain at the vicinity of each actuator is measured with a PZT sensor mounted in a nearly collocated arrangement with the each actuator. In a series of experiments, PPF controllers were tuned to different single or multiple modes with different damping ratios. The resulting controlled plate had considerable damping in its first four modes of vibration.
Meta TagsDetails
DOI
https://doi.org/10.4271/951322
Pages
7
Citation
Bell, J., and Kashani, A., "Structure-Borne Noise Reduction by Active Damping of a Radiating Panel," SAE Technical Paper 951322, 1995, https://doi.org/10.4271/951322.
Additional Details
Publisher
Published
May 1, 1995
Product Code
951322
Content Type
Technical Paper
Language
English