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Truss rod system structure design

A technology for structural design and truss rods, applied in the field of spacecraft structures, can solve the problems of a large number of rods and complicated installation orientations of rods, and achieve the effect of satisfying large load and light weight, and meeting the needs of flexible adaptation.

Active Publication Date: 2019-11-01
BEIHANG UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The technical problem solved by the present invention is: under the limited assembly space of the complex rod system structure, the requirements of large number of rods, complex installation orientation of rods, high-precision assembly and large load-bearing force transmission must be met at the same time.

Method used

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Embodiment Construction

[0029] The bar system structure provided by the present invention will be further described below in conjunction with the accompanying drawings.

[0030] see figure 1 The complex bar system shown has the characteristics of a large number of truss bars and complex connections. The so-called complex connection means that a large joint connected by a bar system needs to be connected to two or more truss bars at the same time (such as multiple bars Item 1). In order to ensure that the rod system satisfies the load-bearing state of the truss rods in application, the rods and large joints are connected by pin fit.

[0031] Specifically, as figure 2 and image 3 shown. According to the layout requirements in the design of the bar system, two kinds of truss members are included. Both rods are composed of small joints 2 at both ends and a rod body 3 . The first type is a conventional rod, which means that the end faces of the small joints at both ends of the rod are parallel, th...

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Abstract

The invention relates to a truss rod system structure design, and belongs to the technical field of spacecraft structures. The invention relates to the truss rod system structure design, and is suitable for the design of a specific rod piece structure and the realizing of a ground assembly process of a spacecraft containing a complex rod system structure. According to the application characteristics and the bearing and assembling requirements of the complex rod system structure, with respect to a typical spacecraft rod system structure body, through the special design of the connecting distance between a small joint of the rod piece and a large joint of the rod system is carried out, the design of disassembling scheme of small joint of rod piece and large joint of rod system, the rubber connection curing opportunity design of a rod piece body and small joints at two ends, a truss rod system structure which meets the requirements of complex assembly is obtained in a large bearing and alimited space at the same time, the truss rod system structure has the characteristics of strong structural force transmission path adaptability, large bearing, light weight and the like, and the truss rod system structure combination body is easy to realize modularization and has the special application requirements of extensible structure.

Description

technical field [0001] The invention belongs to the spacecraft structure technology, and in particular relates to a truss rod system structure design which can be used in complex truss structures and has higher connection precision requirements. [0002] technical background [0003] Rod structure is one of the main forms of spacecraft structure. The most typical applications include the main trusses of the International Space Station and Freedom Space Station, the trusses inside the Hubble Space Telescope, and some secondary structures on the spacecraft. , such as the support truss of the planar array antenna, the connecting frame of the solar cell array, etc. In the application of bar structure, it is divided into truss structure and rigid frame structure. Due to design and process constraints, the actual bar structure is rarely a real truss structure. Nevertheless, considering that the bearing advantage of the bar system lies in its ability to withstand tension and compr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C7/02F16C9/00
CPCF16C7/02F16C7/026F16C9/00F16C2226/40F16C2326/47
Inventor 李伟杰高峰邓宇华胡溶溶易茂斌白江波
Owner BEIHANG UNIV
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