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Qualitative Analysis of Magneto-Rheological Tuned Vibration Absorbers: Experimental Approach

Department of Mechanical and Manufacturing Eng., Miami University, Oxford, OH 45056 USA, koo{at}muohio.edu

Mehdi Ahmadian

Department of Mechanical Engineering, Virginia Tech, Blacksburg, VA 24061 USA

The primary purpose of this study is to provide an experimental evaluation of some of the characteristics and benefits of magneto-rheological tuned vibration absorbers (MR TVAs). Tuned vibration absorbers (TVAs) often provide a simple and elegant solution to many vibration problems. To extend the concept of passive TVAs to MR TVAs, we discuss four different control methods, called velocity-based on—off groundhook control, velocity-based continuous groundhook control, displacement-based on—off groundhook control, and displacement-based continuous groundhook control. Using the test apparatus, a series of tests were conducted to investigate the dynamics of the MR TVA with each control policy. The performances of each of the cases were then analyzed along with the equivalent passive TVA. The performance index was the transmissibility between the input and the output displacement of the structure. The experimental results indicate that the most suitable control method for MR TVAs is the displacement-based groundhook control.

Key Words: semi-active • groundhook control • tuned vibration absorber • magneto-rheological damper • vibration absorber.

References

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• Koo, J-H., Ahmadian, M., and Setareh, M. 2006. ``Experimental Robustness Analysis of Magneto-Rheological Tuned Vibration Absorbers Subjected to Mass Off-Tuning,'' Journal of Vibration and Acoustics, 128(2):126—131.[CrossRef]
• Koo, J-H., Ahmadian, M., Setareh, M. and Murray, T. 2004. ``In Search of Suitable Control Methods for Semi-Active Tuned Vibration Absorbers,'' Journal of Vibration and Control, 10(2):163—174.[Abstract]
• Soong, T.T. and Spencer, B.F. Jr. 2002. ``Supplemental Energy Dissipation: state-of-the-art and state-of-the-practice,'' Journal of Engineering Structures, 24:243—259.[CrossRef]
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Journal of Intelligent Material Systems and Structures, Vol. 18, No. 12, 1137-1142 (2007)
DOI: 10.1177/1045389X07083654


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This Article Abstract Free Full Text (Free PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in Web of Science Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Koo, J.-H. Articles by Ahmadian, M. Search for Related Content Social Bookmarking                         What's this?