Control of a dynamic vibration absorber with magnetorheological damping

Andrew N. Vavreck

doi:10.1117/12.396406

24 August 2000 Control of a dynamic vibration absorber with magnetorheological damping

Andrew N. Vavreck

Proceedings Volume 4073, Fifth European Conference on Smart Structures and Materials; (2000) https://doi.org/10.1117/12.396406
Event: Symposium on Applied Photonics, 2000, Glasgow, United Kingdom

Abstract

Two control techniques are explored analytically for a dynamic vibration absorber with a magnetorheological fluid damper replacing the absorber dashpot. The approaches include skyhook control and an approximation to a linear quadratic optimal control. The approximate-optimal control, which attempts to match the magnetorheological damper force to an optimal control force based on a linear absorber, is shown to improve the dymanic absorber performance over a substantial range of excitation frequencies and force levels, while the skyhook approach is less successful. Detuning the absorber natural frequency below the optimal detuning for a linear absorber improves performance in the approximate- optimal case.

Citation Download Citation

Andrew N. Vavreck "Control of a dynamic vibration absorber with magnetorheological damping", Proc. SPIE 4073, Fifth European Conference on Smart Structures and Materials, (24 August 2000); https://doi.org/10.1117/12.396406

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