Deployable surface device with fixed truss structure

A technology of truss structure and unfolded surface, which is applied in the aerospace field, can solve the problems of low deployment reliability, complex structure, and high surface density, and achieve the effects of improved deployment reliability, simple movement, and reduced surface density

Inactive Publication Date: 2011-04-13
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantages of this structure are: first, due to the use of a plurality of telescopic truss structures with parallelogram diagonal rods, the structure is complex and the deployment reliability is low; second, because there are

Method used

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  • Deployable surface device with fixed truss structure
  • Deployable surface device with fixed truss structure
  • Deployable surface device with fixed truss structure

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0039] Example 1

[0040] refer to figure 2 and image 3 , The rectangular truss type reflective curved surface unfolding device of the present invention includes: a ring connecting joint 1 and a folding ring 2, both of which are complex numbers, and the specific number is determined according to the size of the unfolded curved surface. in:

[0041] The structure of the ring connection joint 1 is as follows Figure 10 (a) and Figure 10 As shown in (b), it is composed of a pair of bevel gear structures 101, 102 and a pair of splints 103, 104, a pair of splints are respectively fixed inside and outside the pair of bevel gear structures, and between the pair of bevel gear structures and the pair of splints An angle of 160 to 180 degrees is set at the splint, so that the ring structure can rotate in a plane around a fixed axis during the process of retracting to unfolding. The size of the angle is related to the number of ring rods, that is, determined according to the form...

Example Embodiment

[0043] Example 2

[0044] refer to figure 2 and Figure 4 , The rectangular truss type refracting curved surface unfolding device of the present invention includes: a ring connecting joint 1 and a folding ring 2, both of which are complex numbers, and the specific number is determined according to the size of the unfolded curved surface. in:

[0045] The structure of the ring connection joint 1 is as follows Figure 10 (a) and Figure 10 As shown in (b), it is composed of a pair of bevel gear structures 101, 102 and a pair of splints 103, 104, a pair of splints are respectively fixed inside and outside the pair of bevel gear structures, and between the pair of bevel gear structures and the pair of splints An angle of 160 to 180 degrees is set at the splint, so that the ring structure can rotate in a plane around a fixed axis during the process of retracting to unfolding. The size of the angle is related to the number of ring rods, that is, determined according to the for...

Example Embodiment

[0047] Example 3

[0048] refer to Figure 5 and Image 6 , The regular triangle truss type reflective curved surface unfolding device of the present invention includes: a ring connecting joint 1 and a folding ring 2, both of which are plural, and the specific number is determined according to the size of the unfolded curved surface. in:

[0049] The structure of the ring connection joint 1 is as follows Figure 10 (a) and Figure 10 As shown in (b), it is composed of a pair of bevel gear structures 101, 102 and a pair of splints 103, 104, a pair of splints are respectively fixed inside and outside the pair of bevel gear structures, and between the pair of bevel gear structures and the pair of splints An angle of 160 to 180 degrees is set at the splint, so that the ring structure can rotate in a plane around a fixed axis during the process of retracting to unfolding. The size of the angle is related to the number of ring rods, that is, determined according to the formula:...

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Abstract

The invention discloses a deployable surface device with a fixed truss structure, which mainly aims to solve the problems of high areal density, complicated structure, low deployable reliability and the like in the prior art. The device comprises a plurality of folded rings and connection joints, wherein every two folded rings (2) are connected by one ring connection joint (1) so as to form a circular foldable and deployable ring structure; each folded ring adopts a rectangular or regular triangle hollow straight bar single-rowed truss structure; driven or locked by the ring connection joints, the folded rings are unfolded into an approximately curve working state from a vertically folded state; staggered flexible pulling ropes are arranged on the folded rings; and a wire mesh or a film of which the surface is coated with aluminum is bound to the pulling ropes, so that the deployable surface device with the fixed truss structure is formed. The deployable surface device with the fixed truss structure has high composite performance indexes such as low areal density, simple structure, high deployable reliability, capacity of transmitting or converging electromagnetic waves in a long distance and the like, and can be used as a reflector or a converging device in space or on the ground.

Description

technical field [0001] The invention belongs to the field of aerospace technology, in particular to a deployable surface device with a fixed truss structure, which is mainly used in space or on the ground. Background technique [0002] With the continuous development of aerospace technology and the continuous expansion of aerospace applications, space large-scale deployable devices such as large-scale deployable antennas and solar panels have been more and more widely used, and even become one of the key components for the success of satellite applications. . However, the limitations of launch vehicle size and carrying capacity, the high cost and high risk of aerospace applications, and the significant differences between the ground development environment and the space working environment all make the design of large-scale deployable devices one of the key technologies for aerospace applications. Large-scale deployable devices not only require light weight and reliable dep...

Claims

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Application Information

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IPC IPC(8): F16M11/38H01Q1/08B64G1/44
Inventor 陈梅郑飞戎有兰罗光程乙邢亭亭张园园
Owner XIDIAN UNIV
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