Optimization and Analysis on Cable Net Structure Supporting the Reflector of the Large Radio Telescope FAST

Author:

Jiang Peng1,Wang Qi Ming1,Zhao Qing1

Affiliation:

1. Chinese Academy of Sciences

Abstract

Five-hundred-meter Aperture Spherical radio Telescope (FAST) is designed to be supported by geodesic form cable-net structure which is suspended from the ring beam. Based on the initial design, the present work has performed a further optimization to reduce the types and quantity of the connections between the cable-net and the ring beam. Furthermore, the finite element model has been established to study the influence of the deadweight of the reflector element on the force distribution of the cable-net structure, and the sensitivity of angle deviation of down tied cable to the control accuracy of cable net deformation has also been discussed.

Publisher

Trans Tech Publications, Ltd.

Reference8 articles.

1. NAN R D. Five hundred meter aperture spherical radio telescope. Science in China: Series G, Physics, Mechanics and Astronomy, 49(2), 2006, 129~148.

2. Yu-hai Qiu. A novel design for giant radio telescopes with an active spherical. main reflector. Chin. Astrophys, 1998, Vol. 22, No. 3: 391~368.

3. Li G Q, Shen L, Luo Y F, et al. Analysis for reflector aluminum mesh panels of Five-hundred meter Aperture Spherical Telescope. Ap&SS, 2001, 278(1): 225~230.

4. Luo Y F, Deng C G, and Li G Q, et al. Structural Analysis of the Reflector Supporting System of the 500 m Active Spherical Telescope. Journal of Tongji University, 2000, 28(4): 497~501.

5. Nan R D, REN G X, et al. Adaptive cable-mesh reflector for the FAST. Acta Astronomica Sinica, 2003, Vol. 44: 13~18.

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