Title :
Vibration analysis of a rotating elastic beam with piezoelectric films as an angular rate sensor
Author :
Fang, H.Y. ; Yang, J.S.
Author_Institution :
CTS Wireless Components, Bloomingdale, IL, USA
fDate :
6/23/1905 12:00:00 AM
Abstract :
The flexural vibration of an elastic beam with surface bonded piezoelectric films rotating about its axis is studied. One-dimensional equations governing the motion of the beam are developed, including the effects of Coriolis and centrifugal forces. The equations are employed in the analysis of the flexural vibration of the beam under the excitation of an alternating electric voltage. Forced vibration solution is obtained. It is shown that the beam can be used as a gyroscope for detecting the angular rate of the rotation. Voltage sensitivity and its dependence on various geometric and physical parameters are examined
Keywords :
Coriolis force; angular velocity measurement; gyroscopes; piezoelectric devices; piezoelectric thin films; vibrations; Coriolis forces; alternating electric voltage; angular rate sensor; beam motion; centrifugal forces; flexural vibration; forced vibration solution; gyroscope; one-dimensional equations; resonant modes; rotating elastic beam; slow rotation rate; surface bonded piezoelectric films; vibrating piezoelectric body; voltage sensitivity; Accelerometers; Bonding; Equations; Frequency; Gyroscopes; Mechanical sensors; Piezoelectric films; Piezoelectric materials; Vibrations; Voltage;
Conference_Titel :
Frequency Control Symposium and PDA Exhibition, 2001. Proceedings of the 2001 IEEE International
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-7028-7
DOI :
10.1109/FREQ.2001.956332
