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

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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 -


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.


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, 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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The University/Research Center Information:
Type: state university
Paper No.: 55358
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