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Vibration Control of Chaotic Systems with Magneto-Rheological Tuned Liquid Column Dampers

Credit to Download: 1 | Page Numbers 8 | Abstract Views: 1004
Year: 2012
COI code: ISAV02_062
Paper Language: English

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Authors Vibration Control of Chaotic Systems with Magneto-Rheological Tuned Liquid Column Dampers

  N Noori - Center of Advanced Systems and Technologies(CAST), School of Mechanical Engineering , College of Engineering, University of Tehran, Tehran, Iran
A Yousefi-Koma -
E Maani -

Abstract:

In this article an analytical dynamic model of a cart-liquid damper’s chaotic behavior has been derived. The cart is attached to a fixed support through a non-linear spring and a linear viscous damper. In most recent works Tuned Liquid Column Dampers (TLCDs) has been used to control chaotic vibrations. Tuned liquid column dampers are U-tubes filled with some liquid, acting as a vibration damper in structures of engineering interest like buildings and bridges. In this research a new control device, magneto-rheological tuned liquid column damper (MR-TLCD), is proposed as a vibration control device. It combines the benefits of magneto-rheological smart materials and tuned liquid column dampers. The magneto-rheological (MR) fluids can reversibly change from a free-flowing, linear viscous fluid to a semi-solid with controllable yield strength in milliseconds when exposed to a magnetic field. A mathematical model of the devised MR-TLCD is first established using the parallel-plate theory and then its results are compared with ordinary TLCD systems. MR-TLCDs with op-timal parameters are capable of achieving much better vibration mitigation capability than conventional TLCD system. The most important purpose of using MR-TLCDs is converting the chaotic vibration to a periodic one. Another purpose of using TLCD or MR-TLCD is to reduce the amplitude of the cart vibration.

Keywords:

chaotic vibration control; Magneto-Rheological Tuned Liquid Column Damper (MR-TLCD); vibration mitigation

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COI code: ISAV02_062

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Noori, N; A Yousefi-Koma & E Maani, 2012, Vibration Control of Chaotic Systems with Magneto-Rheological Tuned Liquid Column Dampers, 2nd International Conference on Acoustics and Vibration, تهران, دانشگاه صنعتي شريف, https://www.civilica.com/Paper-ISAV02-ISAV02_062.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Noori, N; A Yousefi-Koma & E Maani, 2012)
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Paper No.: 55358
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