Structural intensity calculations for active control of plate vibrations

1996 ◽  
Author(s):  
Mei Jin ◽  
Balakumar Balachandran
Keyword(s):  
Active Control ◽  
Plate Vibrations ◽  
Structural Intensity ◽  
Intensity Calculations

scholarly journals Active control of structural intensity in an elastic plate

1995 ◽  
Vol 97 (5) ◽  
pp. 3331-3331 ◽  
Author(s):  
S. I. Hayek ◽  
M.‐Y. Nam ◽  
S. Sommerfeldt
Keyword(s):  
Active Control ◽  
Elastic Plate ◽  
Structural Intensity

A Comparative Study of Actively Controlled and Shunted Piezoelectric Materials for Structural Damping

2007 ◽  
Author(s):  
Mehdi Ahmadian
Keyword(s):  
Active Control ◽  
Piezoelectric Materials ◽  
Structural Vibration ◽  
Structural Damping ◽  
Test Plate ◽  
Plate Vibrations ◽  
Positive Position Feedback ◽  
Position Feedback ◽  
Control Authority ◽  
Circuit Technique

A comparison between actively-controlled piezoelectric (PZT) material with positive position feedback (PPF) and a parallel resistor-inductor shunt circuit technique is provided. This study focuses on the performance of each technique at reducing structural vibration on a test plate for both narrowband and broadband frequency reductions. The comparison between the shunted and active PZT damping techniques used in this study shows that active control with positive position feedback was more effective at controlling vibrations of a test plate. The active PZT method was able to add damping to each of the modes targeted in the frequency range of interest. In addition, active control with positive position feedback was able to achieve this level of control authority with a single PZT patch located in the center of the test plate. Conversely, shunted PZTs used three PZT actuators to reduce the test plate vibrations. The results show that actively-controlled PZTs can provide much more damping per square area of PZT than shunted PZTs, by as much as four times more.

Optimization of placement of piezoelectric elements for the active control of plate vibrations

1989 ◽  
Vol 85 (S1) ◽  
pp. S73-S73
Author(s):  
Janice I. Bayer ◽  
Vasundara V. Varadan ◽  
Vijay K. Varadan
Keyword(s):  
Active Control ◽  
Plate Vibrations ◽  
Piezoelectric Elements

Active control of structural intensity in a T‐beam

1997 ◽  
Vol 102 (5) ◽  
pp. 3128-3128
Author(s):  
Sabih I. Hayek ◽  
Patrick J. Mayfield
Keyword(s):  
Active Control ◽  
Structural Intensity ◽  
T Beam
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