Affiliations: State Key Laboratory for Strength and Vibration, School of Aerospace, Xi'an Jiaotong University, Xi'an, Shaanxi, China
Correspondence:
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Corresponding author: Guirong Yan, State Key Laboratory for Strength and Vibration, School of Aerospace, Xi'an Jiaotong University, No. 28, Xianning West Road, Xi'an 710049, Shaanxi, China. Tel.: +86 029 8266 0978; Fax: +86 029 8266 0978; E-mail:[email protected]
Abstract: A multi-in-multi-out (MIMO) electrodynamic vibration
suppression system based on global-local control strategy is established in
this paper. The system has a structure composed of an upper layer and a
lower layer. The lower layer employs a MIMO vibration suppression algorithm
to suppress local vibration by using several eclectrodynamic vibration
suppressors. The upper layer consists of a personal computer and a data
acquisiton system to perform the principal component analysis of the global
structural vibration. Resusts of the vibration suppression experiment on a
slender structure show that the maximum vibration suppression decreased by
82%, and the overall structural average vibration decreased by 58%,
which proves that this method is effective and feasible.
Keywords: MIMO, electrodynamic vibration suppressor, global-local control
