Development of active reflector of the 30-meter FAST model

Qi-ming Wang; Lichun Zhu; Rendong Nan

doi:10.1117/12.790625

23 July 2008 Development of active reflector of the 30-meter FAST model

Qi-ming Wang, Lichun Zhu, Rendong Nan

Proceedings Volume 7018, Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation; 70184A (2008) https://doi.org/10.1117/12.790625
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

FAST is an Arecibo type large radio telescope with 500 meters aperture reflector, which is composed of about 4600 triangle panels. The panels and back structures are installed on the spring cable meshes. FAST adopts the active reflection structure to change the spherical difference, which will form a simultaneous parabola with aperture of 300 meters. To test the feasibility of this new type reflector structure, a FAST model of 30 meters aperture was constructed in 2005. In this paper, the structure of the model is introduced, which includes a circle supporting girder of 30 meters in diameter, 252 panel back structures, 472 main cables, and 145 sets of control cables, nodes, actuators and anchors. The structural design and analysis are processed for these compositions, and the test results of the model reflector are given. The work of the paper will provide a significant reference for the primary design of FAST reflector.

Citation Download Citation

Qi-ming Wang, Lichun Zhu, and Rendong Nan "Development of active reflector of the 30-meter FAST model", Proc. SPIE 7018, Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation, 70184A (23 July 2008); https://doi.org/10.1117/12.790625

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