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Manufacturing method for satellite borne antenna reflecting surface

A space-borne antenna and reflector technology, applied in the field of deep space exploration and satellite communication, can solve the problems of fiber layer bulge and other problems, achieve the effect of reducing panel deformation, reducing deformation and ensuring close fit

Active Publication Date: 2013-11-27
BEIJING SATELLITE MFG FACTORY
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Problems solved by technology

None of the above 3 patents involves the manufacturing method of vacuum bag solidification molding of carbon fiber composite panels and aluminum honeycomb sandwich structure reflector antennas; moreover, none of the above 3 patents involves the shrinkage deformation caused by the pressure difference during the forming process of the reflector and the post-molding test process. Effectively solve the easy-to-occur fiber layer separation and closed area bulging phenomenon

Method used

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  • Manufacturing method for satellite borne antenna reflecting surface

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Embodiment

[0026] Such as figure 1 As shown, the present invention provides a "hat-shaped" inner panel mold for the reflective surface of a high-precision satellite-borne antenna with a carbon fiber composite panel aluminum honeycomb sandwich structure. The outer dimension of the inner panel mold is 1100×1100, and the raised part in the middle satisfies the paraboloid equation X 2 +Y 2 =2800Z (X, Y, Z are variables in the direction of the three coordinate axes of the plane Cartesian coordinate system). The minimum dimension from the peripheral extension to the edge of the raised portion is 50mm. When laying carbon fiber prepreg, use (0 / 45) in the extension of the perimeter S symmetrical layering.

[0027] The invention provides a method for manufacturing the reflective surface of a high-precision spaceborne antenna with a carbon fiber panel aluminum honeycomb sandwich structure. The reflective surface satisfies the parameter equation X 2 +Y 2 =2800Z (where X, Y, Z are the variables...

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Abstract

The invention relates to a manufacturing method for a satellite borne antenna reflecting surface, particularly relates to a manufacturing method for a high-precision satellite borne antenna reflecting surface adopting a carbon fiber composite panel aluminium honeycomb sandwich structure, and belongs to the technical field of satellite communication and deep space detection. The reflecting surface is shaped like a 'cap with a brim', the periphery of a panel adopts a symmetrical laying layer, and is enabled to form a local thickened symmetrical laying layer, the maintenance of the shape surface precision during the panel forming process and the follow-up operation is facilitated, and the condition that the inboard shrinkage produced due to the differential pressure change during the honeycomb sandwich structure forming process influences the precision of the center reflecting area is prevented.

Description

technical field [0001] The invention relates to a method for preparing a reflective surface of a space-borne antenna, in particular to a method for manufacturing a reflective surface of a high-precision space-borne antenna with a carbon fiber composite panel aluminum honeycomb sandwich structure, belonging to the technical fields of satellite communication and deep space detection. Background technique [0002] Antennas are important payloads of spacecraft. Carbon fiber composite materials have the characteristics of high specific strength, high specific modulus, low thermal expansion coefficient, etc., and are ideal materials for making high-precision antennas. The honeycomb sandwich structure is widely used in the field of antennas due to its high overall stiffness. However, with the rapid development of communication and detection technology and the increase of satellite life in orbit, higher requirements are put forward for the environmental test conditions of the anten...

Claims

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Application Information

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IPC IPC(8): B29C70/34B29C70/44H01Q15/14
Inventor 邓锐路江黎昱张玉生曲澎田浩杜巍
Owner BEIJING SATELLITE MFG FACTORY
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