Construction method and installation technology of reticulated shell structure of wide-span pseudo-random metal radome

A construction method and pseudo-random technology, which is applied to the radiation unit cover and other directions, can solve the problems of not independently mastering the special theoretical method and design technology of the metal mesh radome, insufficient research and development of metal radome, etc. Good practicability, simple and fast processing and installation, compact structure

Active Publication Date: 2015-09-30
INST OF DEFENSE ENG ACADEMY OF MILITARY SCI PLA CHINA
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Problems solved by technology

[0004] Due to the lack of research and development of metal radomes in my country for a long time, there is no independent mastery of special theoretical methods and design techniques for metal grid radomes

Method used

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  • Construction method and installation technology of reticulated shell structure of wide-span pseudo-random metal radome
  • Construction method and installation technology of reticulated shell structure of wide-span pseudo-random metal radome
  • Construction method and installation technology of reticulated shell structure of wide-span pseudo-random metal radome

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Embodiment Construction

[0064] The present invention combines the attached Figure 3-11 , taking the 440-hedron, the 720-hedron and the 2240-hedron as examples to illustrate the specific implementation of the metal radome.

[0065] 1. Pseudo-random 440-hedron long-span radome grid construction steps

[0066] Taking the 440-hedron pseudo-random radome suitable for 20m-25m diameter radome as an example, the construction method is explained.

[0067] (1) Establish the plane mutation primitive of the 32-hedron variant

[0068] After the hexagonal plane primitive is established by combining the 32-hedron variant, the pentagon of the 32-hedron is synchronously rotated by an angle of α, and the intersection point of the 5-gon before and after rotation is connected with the midpoint of the long side of the primitive to form a new plane variation base yuan, such as image 3 The connected dotted line hexagons are shown.

[0069] (2) Pseudo-random formation elements and node settings

[0070] Pseudo-random...

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Abstract

The invention discloses a construction method of a reticulated shell structure of wide-span pseudo-random metal radome, belongs to the crossing field of civil engineering rack structure and electronic engineering electromagnetic radiation. The construction method comprises that an icosidodecahedron and a variant thereof are constructed, a pseudo-random planar variation motif is established via synchronous rotation and rotation angle control of pentagons; pseudo random points between the surface and the boundary of the variation motif side are established; triangular configuration is subdivided via central points of the variation motif side, central triangular points, boundary central points and random points; and thus, nodes of the motif are expanded in the planar topology. A geodesic projection method is used, topology mapping and transformation are carried out on an external sphere of the variant of the icosidodecahedron via all the nodes of the variation motif, and thus, the main reticulated shell of the spherical polyhedron is established. The metal radome is compact in structure, the product processing, preparation and engineering practicality is high, processing and insulation are rapid and simple, and the metal radome can be used for national electronic, meteorological and heavenly body observation radars.

Description

technical field [0001] The invention relates to a construction method and installation process of a large-span pseudo-random metal radome reticulated shell structure, which belongs to the intersection field of civil engineering grid structure and electronic engineering electromagnetic radiation, and is based on topology, space geometry, structural mechanics and electromagnetic radiation The theory and design method of the pseudo-random triangular configuration metal reticulated radome established by the fusion of multiple disciplines. Background technique [0002] Foreign metal reticulated radome is commonly used in astronomical telescopes and large radars. In June 2012, Nanjing Zijinshan Observatory imported a 440-hedron 20.37-meter-diameter spherical metal grid radome with a 13.7-meter-diameter astronomical telescope from ESSCO, an Irish company based in the United States. It has good electromagnetic characteristics in the 3G-120GHz frequency band , which is a new type of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/42
Inventor 周丰峻周丽梁醒培周广恩周东方马胜钢赵明皞邢召伟李延民刘国宁王峰李大磊原方邢峰马永涛刘起昆
Owner INST OF DEFENSE ENG ACADEMY OF MILITARY SCI PLA CHINA
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