A new hybrid damper is proposed to suppress the vibration of a flexible cantilever beam at its free end. It consists of an active piezoelectric-type servo-damper and a passive dampled vibration absorber to effectively suppress both the small and large amplitude vibrations. The H control scheme is successfully applied to a laboratory test rig equipped with the hybrid damper when its overhung length is continually changed.

1.
Abdelhamid, M. K., and Ko, K.-Y., 1991, “Design of an Almost Critically-Damped Single Robot Arm,” De-Vol. 34, Structural Vibration and Acoustics ASME 1991, pp. 325–329.
2.
Harris, C. M., 1961, Shock and Vibration Handbook, 3rd ed., McGraw-Hill.
3.
Hirsch, U., Kuntze, H.-B., Brecht, R., and Kilthau, A., 1992, “Structure and parameter Optimization of an Active Absorber for Decentralized Vibration Control,” Proc. of the 1992 IEEE, International Conference on Robotics and Automation, Nice, Frances, pp. 670–675.
4.
Jee, W.-H., 1994, H Robust Control of Flexible Manipulator Vibration, Ph.D. Dissertation, Korea Advanced Institute of Science and Technology.
5.
Jee
W.-H.
, and
Lee
C.-W.
,
1994
, “
H Robust Control of Flexible Manipulator Vibration by Using a Piezoelectric-Type Servo-Damper
,”
Control Engineering Practice
, Vol.
2
, pp.
421
430
.
6.
Kuntze, H.-B., Hirsch, U., and Steurer, G., 1991, “Decentralized Vibration Control for Fast and Precise Light Weight Robots,” Proc. of the 1991 IEEE, International Conference on Robotics and Automation, Secramento, CA, pp. 2135–2140.
7.
Lee, C.-W., Kim, S.-D., Jee, W.-H., and Lee, S.-H., 1992, “Vibration Control of a Time-Varying Flexible Beam by Using a Piezoelectric Servo-Damper,” 1st International Conference on Motion and Vibration Control, Yokohama, Japan, pp. 50–55.
8.
Lee, S.-H., Lee, C.-W., and Jee, W.-H., 1991, “Vibration Control of a Cantilever Beam by Using a Piezoelectric Servo-Damper,” Proc. of the Korean Society for Noise and Vibration Engineering, Taejon, Korea, pp. 169–174.
9.
Maciejowski, J. M., 1989, Multivariable Feedback Design, Addison-Wesley, Reading, MA.
10.
Sampei
M.
,
Mita
T.
, and
Nakamichi
M.
,
1990
, “
An Algebraic Approach to H Output Feedback Control Problems
,”
Systems and Control Letters
, Vol.
14
, pp.
13
24
.
11.
Seto
K.
,
Mitsuta
S.
, and
Yamashita
S.
,
1991
, “
Vibration Control by a Hybrid Dynamic Absorber
,”
Trans. of the Japan Society of Mechanical Engineers
, Vol.
57(C)
, pp.
478
484
.
12.
Tanida
K.
,
Koike
Y.
,
Mutaguchi
M.
, and
Uno
N.
,
1991
, “
Development of Hybrid-Type Mass Damper Combining Active-Type with Passive-Type
,”
Trans. of the Japan Society of Mechanical Engineers
, Vol.
57(C)
, pp.
485
490
.
13.
Zames
G.
,
1981
, “
Feedback and Optimal Sensitivity; Model Reference Transformations, Multiplicative Semiforms and Approximate Inverses
,”
IEEE Trans. Aut. Control
, AC-Vol.
26
, pp.
301
320
.
This content is only available via PDF.
You do not currently have access to this content.