Volume 7, Issue 3, June 2019, Page: 78-90
A Friction Control Strategy for Shock Isolation
Mohd Ikmal Ismail, Institute of Sound and Vibration Research, University of Southampton, Southampton, United Kingdom
Neil Ferguson, Institute of Sound and Vibration Research, University of Southampton, Southampton, United Kingdom
Received: May 25, 2019;       Accepted: Jul. 10, 2019;       Published: Aug. 10, 2019
DOI: 10.11648/j.ijmea.20190703.12      View  15      Downloads  17
Abstract
A control strategy is presented incorporating friction which can be adapted within a cycle of vibration. During base shock input, the friction is switched on and off based on specified response parameters. The predicted response of a semi active system is compared with that of a passive isolation system. The strategy is shown to produce an improved displacement reduction and a smaller maximum displacement compared to the base input; a result which cannot be obtained with a typical passive system. The models are then validated using an experimental rig, representing a two degree of freedom system, having an electromagnet to switch on and off friction via the control logic. Good agreement is obtained in addition to identifying optimum parameter choices.
Keywords
Shock Isolation, Semi Active Friction, Two Degree of Freedom Model
To cite this article
Mohd Ikmal Ismail, Neil Ferguson, A Friction Control Strategy for Shock Isolation, International Journal of Mechanical Engineering and Applications. Vol. 7, No. 3, 2019, pp. 78-90. doi: 10.11648/j.ijmea.20190703.12
Copyright
Copyright © 2019 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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