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Nested multi-attribute evaluation decision-making method and device for solid-liquid-like power aerospace vehicle

A carrier and solid-like liquid technology, which is applied in the nested multi-attribute evaluation and decision-making field of solid-like liquid-powered aerospace vehicles, can solve problems such as incompleteness and omission, and achieve the effect of improving comprehensiveness

Pending Publication Date: 2021-12-07
BEIHANG UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, this method may miss solutions that are more in line with the target requirements, and is not comprehensive enough

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  • Nested multi-attribute evaluation decision-making method and device for solid-liquid-like power aerospace vehicle
  • Nested multi-attribute evaluation decision-making method and device for solid-liquid-like power aerospace vehicle
  • Nested multi-attribute evaluation decision-making method and device for solid-liquid-like power aerospace vehicle

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Embodiment Construction

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. the embodiment. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0026] Aerospace engineering is one of the most promising fields of engineering technology in the future. The development and application of space technology to develop social economy and military strength is the focus of the world's aerospace powers. In recent years, with the continuous improvement of low-Earth orbit launch requirements, the development of low-cost and high-reliability space ve...

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Abstract

The invention provides a nested multi-attribute evaluation decision-making method and device for a solid-liquid-like power aerospace vehicle. The method comprises the following steps: firstly, establishing a full-attribute continuous model of the solid-liquid-like power aerospace vehicle; based on a preset design variable, a constraint condition, an optimization target and the full-attribute continuous model, adopting a preset optimization algorithm to obtain a plurality of alternative schemes and an ideal scheme; then determining the close degree of the alternative scheme and the ideal scheme; continuing to execute a preset optimization algorithm to obtain a set number of alternative schemes until the close degree meets a convergence condition; and finally, based on the close degree of the alternative schemes, determining an optimal scheme from the plurality of alternative schemes. According to the method, the comprehensiveness of evaluation and decision-making of the design scheme of the aerospace vehicle is improved.

Description

technical field [0001] The invention relates to the technical field of aircraft design, in particular to a nested multi-attribute evaluation and decision-making method and device for a solid-liquid powered space vehicle. Background technique [0002] In related technologies, multidisciplinary parametric modeling and design optimization are usually carried out on the continuous attributes of small launch vehicles, and the optimization results are combined with the discrete attribute evaluation data obtained by expert scoring, and the multi-attribute decision-making method is used to develop small launch vehicles. The comprehensive evaluation of design schemes has obtained the advantages and disadvantages of different design schemes. However, this method may miss solutions that are more in line with the target requirements, which is not comprehensive enough. Contents of the invention [0003] In view of this, the object of the present invention is to provide a nested multi-...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/15G06F30/27G06N3/12G06F111/04G06F111/10G06F119/14G06F111/06
CPCG06F30/15G06F30/27G06N3/126G06F2111/04G06F2111/10G06F2119/14G06F2111/06
Inventor 朱浩徐维乐王鹏程肖明阳李心瞳李志蔡国飙
Owner BEIHANG UNIV