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COBEM 2017
24th ABCM International Congress of Mechanical Engineering
An efficient selective modal H-infinity control for mechanical structures
Submission Author:
Helói Genari , SP , Brazil
Co-Authors:
Eurípedes Nóbrega, Pablo Siqueira Meirelles, Helói Genari
Presenter: Helói Genari
doi://10.26678/ABCM.COBEM2017.COB17-1029
Abstract
This paper explores the modal H-infinity methodology for active vibration control of real flexible structures. The modal technique has been recently proposed by this research group, associating modal and robust control concepts by means of the new modal H-infinity norm. This norm allows an appropriate control energy distribution in each mode using an H-infinity controller, which leads to a high modal selectivity, an adequate overall performance, and robustness. The modal technique effectiveness is investigated in a cantilever aluminum beam with non-collocated piezoelectric transducers and is compared with the regular H-infinity control methodology. Theoretical and experimental results show that the modal H-infinity control provides a significant performance gain over the regular H-infinity strategy.
Keywords
Active Vibration Control, modal control, modal H-infinity control, H-infinity control, spillover
