Structural Engineering and Mechanics

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Optimal distribution of the cable tensions and structural vibration control of the cable-cabin flexible structure

  • Qiu, Y.Y. (School of Mechanical and Electronic Engineering, Xidian University) ;
  • Duan, B.Y. (School of Mechanical and Electronic Engineering, Xidian University) ;
  • Wei, Q. (School of Mechanical and Electronic Engineering, Xidian University) ;
  • Nan, R.D. (Beijing Radio Astronomy Observatory, Chinese Academy) ;
  • Peng, B. (Beijing Radio Astronomy Observatory, Chinese Academy)
  • Received : 2001.02.02
  • Accepted : 2002.04.23
  • Published : 2002.07.25
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Abstract

In order to trace a target in deep sky, a feed cabin 20 tons in weight used for a large radio telescope is drawn with six cables. To realize a smooth tracing all the time, optimal distribution of the cable tensions is explored. A set of cable-clog systems is utilized to control the wind-induced vibration of the cable-cabin structure. This is an attempt to apply the passive structural control strategy in the area of radio astronomy. Simulations of wind-induced vibration of the structure in both time and frequency domains offer a valuable reference for construction of the next generation large radio telescope.

Keywords

References

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