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Auto-tuning of a tunable structural insert
Department of Mechanical Engineering, University of Auckland.
Institute of Sound and Vibration Research, University of Southampton.
Luleå tekniska universitet.
2001 (English)In: Proceedings of ISMA 25, 2000 International Conference on Noise and Vibration Engineering: 2000 September 13 - 15, [Leuven / [ed] P. Sas, Leuven: Katholieke universiteit , 2001, 99-106 p.Conference paper (Refereed)
Abstract [en]

This paper considers the auto-tuning of structural inserts, placed into part of a structure to affect the transmission of bending vibrations there. Auto-tuning has the potential to optimise the vibration reduction produced by the insert even in the face of time-varying changes in the dynamic properties of the structure or of the disturbance signal. A particular type of tunable insert is considered, namely one which comprises two elastic face plates and a central core of tunable fluid such as an electro-rheological (ER) or magneto-rheological (MR) fluid. By adjusting the applied electric or magnetic field the visco-elastic properties of the fluid can be controlled and hence so, too, can the vibration transmission properties of the insert. The autotuning scheme itself utilises a downstream sensor, which provides a measure of the vibration energy after the insert, and an adaptive algorithm in the feedback loop. The adaptive algorithm determines the optimal field applied to the tunable insert.

Place, publisher, year, edition, pages
Leuven: Katholieke universiteit , 2001. 99-106 p.
Identifiers
URN: urn:nbn:se:ltu:diva-37788Local ID: be9a5730-5b2f-11de-9f57-000ea68e967bISBN: 90-73802-72-5OAI: oai:DiVA.org:ltu-37788DiVA: diva2:1011286
Conference
International conference on noise and vibration engineering : 13/09/2000 - 15/09/2000
Note
Godkänd; 2001; Bibliografisk uppgift: CD-ROM; 20090617 (andbra)Available from: 2016-10-03 Created: 2016-10-03Bibliographically approved

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