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Design method for truss structure

A technology of structural design and design method, which is applied in the direction of building structure and construction, can solve the problems of complex truss design, long design cycle, high cost, etc., and achieve the effect of small structural weight, saving design cost and high rigidity

Inactive Publication Date: 2011-08-03
SHANGHAI SATELLITE ENG INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Although large and complex trusses have been applied on many satellites, due to the complexity of truss design, it is still in the designer's experience to design the truss
Using traditional design methods, the design cycle is long and the cost is high

Method used

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  • Design method for truss structure
  • Design method for truss structure
  • Design method for truss structure

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Embodiment Construction

[0016] Preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0017] figure 1 It is a schematic diagram of the topological space of the truss of the present invention. According to the external dimensions of the structure, the topological space of the structure is determined, and CONM2 in the topological space is the load point. The topological space is constrained according to the actual boundary conditions of the structure, and then the topological space is loaded horizontally and vertically respectively. Considering that the volume constraint of the entire structure is 0.06, and the frequency constraint of the entire structure is 70Hz, the optimization goal is the lowest structural compliance . In the optimization process, the weighting coefficient of each working condition is considered to be 1, that is, the effect of each working condition is considered to be the same, and the weighting coefficient can be m...

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Abstract

The invention relates to a design method for a truss structure, which improves the design efficiency of a truss. The truss is designed by a topological optimization method. The truss designed by the method has the characteristics of light weight, high stiffness and the like.

Description

technical field [0001] The invention relates to a structure design method, in particular to a truss structure design method of an aerospace vehicle. Background technique [0002] In order to meet the rigidity and weight requirements of large satellite installation loads, a study on the design of trusses related to it was carried out. [0003] Although large and complex trusses have been applied on many satellites, due to the complexity of truss design, designers still design trusses based on experience. Using traditional design methods, the design cycle is long and the cost is high. In order to shorten the design cycle and improve the design quality, a novel truss structure design method is needed around the optimal design of the truss structure, reducing the structural weight and improving the structural rigidity and other technical requirements. Contents of the invention [0004] In order to meet the weight and performance requirements of large aerospace vehicles, to a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/19
Inventor 顾亦磊
Owner SHANGHAI SATELLITE ENG INST
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