Tunable Passive Vibration Absorber
Agency / Branch:
DOD / NAVY
An adaptive passive vibration absorber prototype based on a electrically shunted piezoelectrics is proposed. The vibration absorber comprises of sensing, signal processing, electrical impedance and actuation subsystems. The sensing subsystem provides reference signals for the adaptation algorithm. Modern signal processing techniques, visa vi. the discrete wavelet transform, are used to generate the commands that update programmable electrical impedance characteristics that passive couple to the structural actuation system. Actuation is provided either by Piezo Fiber Composites, a promising recent development in piezoelectric actuation, or appropriately arranged stack actuators.
Small Business Information at Submission:
Principal Investigator:Brett Masters
MIDE TECHNOLOGY CORP.
247 Third St. Cambridge, MA 02141
Number of Employees: