The twin rotor damper (TRD) is a newly developed active mass damper. It is presented here along with respective closed-loop control algorithms. The greatest advantage of the device is its low power demand when operated in a preferred mode of operation, the continuous rotation mode. In this mode, two eccentric masses rotate in opposite directions about two parallel axes with a mostly constant angular velocity. The resultant force is harmonic and can be used for the control of structural vibrations. To study the effect of the TRD on a single degree-of-freedom (SDOF) oscillator, various state variables are introduced and a feedback control algorithm is developed for the continuous rotation mode of operation. For reaching and leaving the continuous rotation mode, ramp-up and ramp-down trajectories are developed. These trajectories are designed such that the power and energy demand as well as the mechanical wear on the device are minimized. The feedback control algorithm is validated on a test setup. The damping effectiveness and the low power and energy demands encourage further investigation of the device under stochastic loading and comparisons with other active mass dampers.
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August 2016
Research-Article
Active Vibration Control Using Centrifugal Forces Created by Eccentrically Rotating Masses
Richard Bäumer,
Richard Bäumer
Structural Analysis and Steel Structures Institute,
Hamburg University of Technology,
Denickestrasse 17,
Hamburg 21073, Germany
e-mail: richard.baeumer@tuhh.de
Hamburg University of Technology,
Denickestrasse 17,
Hamburg 21073, Germany
e-mail: richard.baeumer@tuhh.de
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Uwe Starossek
Uwe Starossek
Structural Analysis and Steel Structures Institute,
Hamburg University of Technology,
Denickestrasse 17,
Hamburg 21073, Germany
e-mail: starossek@tuhh.de
Hamburg University of Technology,
Denickestrasse 17,
Hamburg 21073, Germany
e-mail: starossek@tuhh.de
Search for other works by this author on:
Richard Bäumer
Structural Analysis and Steel Structures Institute,
Hamburg University of Technology,
Denickestrasse 17,
Hamburg 21073, Germany
e-mail: richard.baeumer@tuhh.de
Hamburg University of Technology,
Denickestrasse 17,
Hamburg 21073, Germany
e-mail: richard.baeumer@tuhh.de
Uwe Starossek
Structural Analysis and Steel Structures Institute,
Hamburg University of Technology,
Denickestrasse 17,
Hamburg 21073, Germany
e-mail: starossek@tuhh.de
Hamburg University of Technology,
Denickestrasse 17,
Hamburg 21073, Germany
e-mail: starossek@tuhh.de
1Corresponding author.
Contributed by the Technical Committee on Vibration and Sound of ASME for publication in the JOURNAL OF VIBRATION AND ACOUSTICS. Manuscript received August 28, 2015; final manuscript received March 31, 2016; published online May 25, 2016. Assoc. Editor: Philippe Velex.
J. Vib. Acoust. Aug 2016, 138(4): 041018 (14 pages)
Published Online: May 25, 2016
Article history
Received:
August 28, 2015
Revised:
March 31, 2016
Citation
Bäumer, R., and Starossek, U. (May 25, 2016). "Active Vibration Control Using Centrifugal Forces Created by Eccentrically Rotating Masses." ASME. J. Vib. Acoust. August 2016; 138(4): 041018. https://doi.org/10.1115/1.4033358
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