The Delayed Resonator (DR) is a recent active vibration absorption technique which uses time delayed position feedback generating ideal resonance feature in a passive vibration absorber. This objective can also be achieved using proportional and derivative (PD) control as well as other more sophisticated routines such as LQR, sliding mode control. In this paper, DR technique is compared with PD, a widely adopted control strategy. Actuator dynamics is taken into account in analyzing the system. An analytical comparison is presented which is followed by an experimental validation of the findings using a single-degree-of-freedom primary structure and an absorber with electromagnetic actuator. Both analytical and experimental results show that the DR and PD implementations can be equally effective in suppressing undesired oscillations. The latter, however, requires a velocity observer, which is an additional complexity beyond the DR feedback structure. [S0022-0434(00)02203-6]
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e-mail: olgac@eng2.unconn.edu
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September 2000
Technical Papers
Experimental Comparison of Delayed Resonator and PD Controlled Vibration Absorbers Using Electromagnetic Actuators
Hakan Elmali,
Hakan Elmali
Mechanical Engineering Department, University of Connecticut, Storrs, CT 06269-3139
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Mark Renzulli,
Mark Renzulli
Mechanical Engineering Department, University of Connecticut, Storrs, CT 06269-3139
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Nejat Olgac
e-mail: olgac@eng2.unconn.edu
Nejat Olgac
Mechanical Engineering Department, University of Connecticut, Storrs, CT 06269-3139
Search for other works by this author on:
Hakan Elmali
Mechanical Engineering Department, University of Connecticut, Storrs, CT 06269-3139
Mark Renzulli
Mechanical Engineering Department, University of Connecticut, Storrs, CT 06269-3139
Nejat Olgac
Mechanical Engineering Department, University of Connecticut, Storrs, CT 06269-3139
e-mail: olgac@eng2.unconn.edu
Contributed by the Dynamic Systems and Control Division for publication in the JOURNAL OF DYNAMIC SYSTEMS, MEASUREMENT, AND CONTROL. Manuscript received by the Dynamic Systems and Control Division February 3, 1998. Associate Technical Editor: S. D. Fassois.
J. Dyn. Sys., Meas., Control. Sep 2000, 122(3): 514-520 (7 pages)
Published Online: February 3, 1998
Article history
Received:
February 3, 1998
Citation
Elmali, H., Renzulli, M., and Olgac, N. (February 3, 1998). "Experimental Comparison of Delayed Resonator and PD Controlled Vibration Absorbers Using Electromagnetic Actuators ." ASME. J. Dyn. Sys., Meas., Control. September 2000; 122(3): 514–520. https://doi.org/10.1115/1.1286820
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