Hybrid Mass Damper: Theoretical and Experimental Power Flow Analysis

Author:

Billon K.1,Zhao G.2,Collette C.34,Chesné S.5

Affiliation:

1. University of Lyon, Lyon Central School, LTDS UMR 5513, F-69134 Ecully, France

2. MOE Key Laboratory of TianQin Mission, TianQin Research Center for Gravitational Physics and School of Physics and Astronomy, Frontiers Science Center for TianQin, CNSA Research Center for Gravitational Waves, Sun Yat-Sen University, Zhuhai 519082, China

3. University of Liège, Precision Mechatronics Laboratory, Department of Aerospace and Mechanical Engineering, 9, allée de la découverte, 4000 Liège, Belgium

4. Free University of Brussels, Department of BEAMS, 50, F.D. Roosevelt Avenue, 1050 Brussels, Belgium

5. University of Lyon, INSA-Lyon, CNRS UMR5259, LaMCoS, F-69621, France

Abstract

Abstract In this paper, a hybrid mass damper (HMD) and its hyperstability due to a power flow approach are studied. The HMD proposed combines an active control system with an optimal passive device. The initial passive system is an electromagnetic tuned mass damper (TMD) and the control law is a modified velocity feedback with a phase compensator. The resulting hybrid controller system is theoretically hyperstable and ensures fail-safe behavior. Experiments are performed to validate the numerical simulation and provide good results in terms of vibration attenuations. Both excitation from the bottom in the frequency domain and shock response in the time domain are tested and analyzed. The different power flows in terms of active and reactive powers are estimated numerically and experimentally on the inertial damper (passive and active) and on the HMD. Moreover, through a mechanical analogy of the proposed system, it is shown that this hybrid device can be seen as an active realization of an inerter based tuned-mass-damper associated with a sky-hook damper. Observations and analysis provide insight into the hyperstable behavior imposed by the specific control law.

Publisher

ASME International

Subject

General Engineering

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