space quintile reflector unit of fast radio telescope
A technology of radio telescopes and reflectors, applied in the direction of electrical components, antennas, etc., can solve the problems of large unit deformation and weight, large unit deformation, and low installation efficiency, and achieve surface shape accuracy adjustment, reduce types and numbers, and install The effect of convenient transportation
Inactive Publication Date: 2017-12-08
NAT ASTRONOMICAL OBSERVATORIES CHINESE ACAD OF SCI
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Problems solved by technology
In the early stage, traditional design concepts were mainly used to develop some reflector units with different structures, such as: single-layer steel-backed reflector units, which have large deformation and weight; string-branched pre-tensioned steel-backed reflector units, This kind of unit has large deformation and poor stability; the angle steel is bolted to the reflective surface unit of the space steel back frame, and the installation efficiency of this unit is low, the weight is large, and the anti-corrosion performance is poor
None of the above traditional types can meet the requirements of FAST
Method used
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[0041] In order to further explain the technical means and functions adopted by the present invention to achieve the intended invention purpose, the structure, features and functions of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.
[0042] The FAST radio telescope space quintile reflector unit described in the present invention has a structure such as figure 1 , figure 2 , image 3 , Figure 4 As shown, it specifically includes a double-layer back frame. The back frame is triangular in shape as a whole, and each layer is composed of several triangular structural units. The triangular structural units are formed by connecting support rods through joint balls. The sides are divided into four equal parts, and the oblique support of the web bar is arranged in the middle of the two layers, and the web bar is also connected to the joint ball.
[0043] The support rods, joint balls and abdominal r...
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The invention discloses a FAST radio telescope space quintile reflecting surface unit, which includes a double-layer back frame, the back frame is triangular as a whole, each layer is composed of several triangular structural units, and the triangular structural units are connected by support rods through joint balls Each side of the upper layer is divided into five equal parts, and each side of the lower layer is divided into four equal parts. There is an oblique support for the web bar between the two layers, and the web bar is also connected to the joint ball; the upper layer of the back frame is used as Several panel subunits are installed on the base, and the panel subunits are triangular in shape. The panel subunits are fixedly installed on the support rods and joint balls on the upper layer of the back frame through node support devices. The node support devices can be adjusted to the panel subunits. The supporting height, the support rods, joint balls, web rods, and panel subunits are all made of aluminum alloy.
Description
technical field [0001] The invention relates to a FAST radio telescope reflector unit, which is a component of the radio telescope reflector. Background technique [0002] FAST is the abbreviation of Five-hundred-meter Aperture Sphericalradio Telescope. It is a major national scientific project and is currently being constructed in Dawodang Depression, Jinke Village, Kedu Town, Pingtang County, Qiannan Buyi and Miao Autonomous Prefecture, Guizhou Province. middle. This project uses the Dawodang natural karst depression as the site of the telescope to build the world's largest single-aperture radio telescope. [0003] The reference surface of the FAST active reflector is a spherical surface with a diameter of 500m and a radius of 300m, which is composed of a main support structure, an actuator and a reflector unit. The main support structure of the active reflector consists of ring beams, lattice columns, lattice column foundations, main cable nets, and down cables. The ma...
Claims
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IPC IPC(8): H01Q15/16
Inventor 古学东赵保庆赵清王启明南仁东
Owner NAT ASTRONOMICAL OBSERVATORIES CHINESE ACAD OF SCI