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A Partition Method of Parabolic Surface Based on Spiral Theory

A kind of spiral theory, paraboloid technology, applied in electrical digital data processing, special data processing applications, instruments, etc.

Active Publication Date: 2019-10-18
SHANGHAI AEROSPACE SYST ENG INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The object of the present invention is to provide a method for dividing paraboloid modules based on the spiral theory, so as to solve the problem that different module units need to be customized for paraboloids with different calibers in the field of on-orbit assembly

Method used

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  • A Partition Method of Parabolic Surface Based on Spiral Theory
  • A Partition Method of Parabolic Surface Based on Spiral Theory
  • A Partition Method of Parabolic Surface Based on Spiral Theory

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Embodiment Construction

[0029] In order to better explain the present invention, a preferred embodiment is used to illustrate the present invention in detail with the accompanying drawings. The details are as follows:

[0030] Such as figure 2 As shown, the parabolic module division method based on the spiral theory provided by the present invention includes the following steps:

[0031] S1: Starting from the center of the bottom of the paraboloid, a parabolic spiral line with the characteristics of scanning growth of equal area is established.

[0032] The constructed parabolic spiral is specifically expressed as:

[0033]

[0034] Among them, θ is the polar angle, r p Is the polar diameter on the polar plane, Z is the height of the paraboloid, α 1 , Α 2 It is a parameter indicating the focal length of the paraboloid and the tightness of the spiral winding. The parabolic spiral is like image 3 As shown, it differs from the Fermat spiral (r p =α 2 ·Θ 1 / 2 ) Is similar, the area swept by the parabolic spiral...

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Abstract

The invention provides a paraboloid module division method based on a screw theory. The method comprise: starting from the center of the bottom of a paraboloid, establishing a paraboloid spiral line in an equal area scanning increase characteristic, repeatedly arranging nodes along the spiral line in equal phase, with a golden included angle as the rotation angle, to obtain a uniformly distributed paraboloid spiral dot matrix, connecting any dot in the dot matrix with two or three adjacent dots under the dot, to obtain paraboloid quadrangles or triangular grids approximate to uniform distribution, classifying all units in the paraboloid grids into N kinds (such as 3,5,6,7,or 9 kinds) according to level of similarity, and performing overlaying optimization on all the units in each kind of units, to obtain a largest common shape, and a module unit which can be used to assemble paraboloids in different diameters is obtained. The method can realize universalization of a module unit among different paraboloids, and creates conditions for universalization of an in-orbit assembling system and supporting facilities.

Description

Technical field [0001] The invention relates to the technical field of structural modularization, in particular to a parabolic module division method based on spiral theory. Background technique [0002] The light-weight, high-precision, and high-rigidity large-span-large-area space reticulated shell / slab shell structure is the basic structure for building large-scale space facilities in the future, and it is also one of the important requirements for the development of China's aerospace engineering in the future. Such a structure can be used to construct data Ten-meter-caliber space telescopes, earth observation and deep-space communication radars, 100-meter-class solar sails and space solar power stations, etc., among which super-large parabolic structures as antennas and reflectors for astronomical observations will become important for such super-large structures One of the structures. At present, most of the parabolic structures in orbit are various deployable structures. P...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 曾令斌邵济明彭福军史航邱宝贵詹世涛李保江秦礼
Owner SHANGHAI AEROSPACE SYST ENG INST
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