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Active damping of a stiff beam-like structure with acceleration feedback

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Abstract

This paper describes a local control scheme using acceleration feedback and a colocated proof-mass actuator for active damping of structures. The closed-loop system is unconditionally stable. The control law is implemented digitally on a stiff beam (f 1=68 Hz) representative of an optical test bench. The modal damping ratio is improved from below 0.2 percent to above 4 percent.

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Authors and Affiliations

  1. Université Libre de Bruxelles, Av F.D. Roosevelt, CP 165. 50, B-1050, Brussels, Belgium

    A. Preumont (Professor of Mechanical Engineering) & N. Loix (Research Engineer)

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  1. A. Preumont
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  2. N. Loix
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Preumont, A., Loix, N. Active damping of a stiff beam-like structure with acceleration feedback. Experimental Mechanics 34, 23–26 (1994). https://doi.org/10.1007/BF02328438

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  • DOI: https://doi.org/10.1007/BF02328438

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