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Proceedings Article

Theoretical and experimental study of vibration suppression for stayed cable

[+] Author Affiliations
Shieh-Kung Huang, Pei-Yang Lin

National Ctr. for Research on Earthquake Engineering (Taiwan)

Chin-Hsiung Loh

National Taiwan Univ. (Taiwan)

Proc. SPIE 7981, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011, 79814F (April 15, 2011); doi:10.1117/12.881536
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From Conference Volume 7981

  • Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011
  • Masayoshi Tomizuka
  • San Diego, California, USA | March 06, 2011

abstract

The objective of this study is to develop a numerical model of a stay cable interacted with deck, and to examine the vibration suppression technique of the stayed cable subject to external loading. First, a numerical model based on the finite difference method and the finite element method has been developed to simulate the effects of the bending stiffness and its sag-extensibility characteristics of the cable. Accurate vibration mode shapes and modal frequency of the interaction between stay cable and deck are examined. For the vibration control of cable, a MR-damper is used as control device. This damper can be achieved either through the passive control strategy or the semi-active control strategy employing decentralized sliding mode control (DSMC) and maximum energy dissipation (MED) on the staycable. To verify this study, a scaled-down cable structure is designed and constructed in NCREE, Taiwan. A small shaker is designed and mounted onto the cable to generate the sinusoid excitation with different amplitudes and frequencies. Dynamic characteristics of the cable-deck system are identified and the system model is developed for control purpose. The DSMC algorithm using MR damper was studied to reduce the cable vibration under different excitation frequencies.

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Citation

Shieh-Kung Huang ; Pei-Yang Lin and Chin-Hsiung Loh
"Theoretical and experimental study of vibration suppression for stayed cable", Proc. SPIE 7981, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011, 79814F (April 15, 2011); doi:10.1117/12.881536; http://dx.doi.org/10.1117/12.881536


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