An experimental study for the active vibration control of structures subject to external excitations using piezoelectric sensors and actuators is presented. A simply supported plate and a curved panel are used as the controlled structures in two experiments, respectively. The Independent Modal Space Control (IMSC) approach is employed for the controller design. In order to increase the adaptability, the time-domain modal identification technique is incorporated into the controller to real-time update the system parameters. The adaptive effectiveness of the time-domain modal identification technique is tested by fixing an additional mass on the simply supported plate to change its structural properties. The vibration suppression performances of the controller are 5.7 dB and 10.8 dB for the simply-supported plate with/without the mass subject to a chirp sine excitation, respectively. For the experiment of the curved panel subject to a sinusoidal excitation, the vibration attenuation of the control scheme is 5.0 dB even the control circuit is subject to some noise generated by electrical and magnetic interferences.

Issue Section:
Technical Papers
Keywords:
piezoelectric actuators, vibration control, time-domain analysis, identification
Topics:
Actuators, Control equipment, Excitation, Sensors, Vibration suppression, Vibration, Vibration control, Design
1.
Yang
,
S.M.
, and
Liu
,
Y.C.
,
1995
, “
Frequency Domain Control of Flexible Beams with Piezoelectric Actuator
,”
ASME J. Dyn. Syst., Meas., Control
,
117
(
4
), pp.
541
–
546
.
2.
Choi
,
S.B.
,
1994
, “
Alleviation of Chattering in Flexible Beam Control via Piezofilm Actuator and Sensor
,”
AIAA J.
,
33
(
3
), pp.
564
–
567
.
3.
Warrren
,
S.R.
,
Voulgaris
,
P.G.
, and
Bergman
,
L.A.
,
1995
, “
Robust Control of a Slewing Beam System
,”
J. Vib. Control
,
1
(
2
), pp.
251
–
271
.
4.
Habib
,
M.S.
, and
Radcliffe
,
C.J.
,
1991
, “
Active Parametric Damping of Distributed Parameter Beam Transverse Vibration
,”
ASME J. Dyn. Syst., Meas., Control
,
113
, pp.
295
–
299
.
5.
Hac
,
A.
, and
Liu
,
L.
,
1993
, “
Sensor and Actuator Location in Motion Control of Flexible Structures
,”
J. Sound Vib.
,
167
, pp.
239
–
261
.
6.
Devasia
,
S.T.
,
Meressi
,
B.P.
, and
Bayo
,
E.
,
1993
, “
Piezoelectric Actuator Design for Vibration Suppression: Placement and Sizing
,”
J. Guid. Control Dyn.
,
16
, pp.
859
–
864
.
7.
Lee, Y.Y., 1997, “Vibration Control of Composite Plate Under Random Acoustic Loading,” Ph.D. Dissertation, Department of Aerospace Engineering, Old Dominion Univ., Norfolk, VA.
8.
Falangs
,
E.T.
,
Dworak
,
J.A.
, and
Koshigoe
,
S.
,
1994
, “
Controlling Plate Vibrations Using Piezoelectric Actuators
,”
IEEE Control Syst. Mag.
,
14
, pp.
34
–
41
.
9.
Smith, G.C., and Clark, R.L., 1997, “Optimum Transducer Placement for Output Feedback Control of Broadband Structural Acoustic Radiation,” AIAA-97-1316-CP, 38th Structures, Structures, Structural Dynamics and Materials Conference, Kissimmee, FL, April, pp. 1621–1631.
10.
Meirovitch
,
L.
, and
Baruh
,
H.
,
1982
, “
Control of Self-Adjoint Distributed-Parameter Systems
,”
J. Guidance
,
5
(
1
), pp.
60
–
66
.
11.
Meirovitch
,
L.
, and
Baruh
,
H.
,
1985
, “
The Implementation of Modal Filters for Control of Structures
,”
J. Guidance
,
8
(
6
), pp.
707
–
716
.
12.
Ibrahim
,
S.R.
, and
Mikulcik
,
E.C.
,
1976
, “
The Experimental Determination of Vibration Parameters from Time Responses
,”
The Shock and Vibration Bulletin
,
46
(
5
), pp.
183
–
198
.
13.
Ibrahim
,
S.R.
, and
Mikulcik
,
E.C.
,
1977
, “
A Method for the Direct Identification of Vibration Parameters from the Free Response
,”
The Shock and Vibration Bulletin
,
47
(
4
), pp.
183
–
198
.
14.
Ibrahim
,
S.R.
,
1979
, “
Application of Random Time Domain Analysis to Dynamic Flight Measurements
,”
Shock and Vibration Bulletin
,
49
(
2
), pp.
165
–
170
.
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