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Feasibility investigations for a decentralized vibration control concept with embedded control nodes using the filtered-x-least-mean-squares algorithm

: Kauba, Michael; Herold, Sven; Mayer, Dirk

Cunha, Á. ; European Community on Computational Methods in Applied Science -ECCOMAS-; Univ. Porto, Faculty of Engineering:
SMART 2009: Smart structures and materials. ECCOMAS thematic conference. Proceedings. CD-ROM : 13 - 15 July 2009, Porto, Portugal
Porto, 2009
ISBN: 978-972-752113-5
10 S.
Thematic Conference on Smart Structures and Materials <4, 2009, Porto>
Fraunhofer LBF ()
feasibility investigation; vibration control; Filtered-X-Least-Mean-Squares-Algorithm

In many applications (Elliott et al. 1987, Riley & Bodie 1996) the Multiple Input Multiple Output (MIMO) Filtered Reference Least Mean Squares (FxLMS) Algorithm has shown a good performance in reducing vibrations by means of an active control concept. The paper shows an idea for a decentralized implementation of this algorithm by using multiple control nodes which are connected by means of a medium for data transmission between the nodes, for example a bus system. Different strategies for the implementation of the control system are compared by means of a numerical simulation of a simplified model of the engine mounting problem. A general feasibility of the concept is investigated concerning the required bandwidth of the communication medium. Finally experimental results on a laboratory test structure are shown. A first implementation of one feasible concept of the simulations is carried out on a rapid control prototyping system and is tested on a simplified active mounting setup.