Solid rocket engine charging performance matching method and device, equipment

A solid rocket, matching method technology, applied in computer parts, character and pattern recognition, special data processing applications, etc., can solve problems such as poor performance matching effect

Active Publication Date: 2021-05-28
NAT UNIV OF DEFENSE TECH
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  • Claims
  • Application Information

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Problems solved by technology

However, in the process of realizing the present invention, the inventors found that the aforementioned tradition

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  • Solid rocket engine charging performance matching method and device, equipment
  • Solid rocket engine charging performance matching method and device, equipment
  • Solid rocket engine charging performance matching method and device, equipment

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[0025] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application. It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to another element and integrated with it, or there may be an intermediate element at the same time, that is, it may also be indirectly connected to another element .

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the application are only for the pur...

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Abstract

The invention relates to a solid rocket engine charging performance matching method and device, equipment. The method comprises the following steps: acquiring a symbol distance field of each charging configuration to be matched; performing interval statistics on the symbol distance field to obtain a charging interval vector of each charging configuration; performing similarity calculation on each charging interval vector by adopting a cosine similarity method to obtain a similarity heat map of each charging configuration; and comparing the burning surface curve of each charging configuration with the similarity heat map to obtain a charging performance matching result. Three-dimensional charging characterization is carried out through a symbol distance field, charging structure parameters are stored in a distance field mode, dimension reduction storage of data is achieved based on intrinsic generalized decomposition, and the memory space is saved; by processing the distance field to obtain the interval vector of the charge and based on a cosine similarity calculation method, intelligent matching of configuration and performance of heterogeneous charge is realized, the purpose of better performance matching effect is achieved, and the inheritance of empirical data and knowledge is effectively improved.

Description

technical field [0001] The present application relates to the technical field of aircraft engine design, in particular to a solid rocket motor charge performance matching method, device and equipment. Background technique [0002] Solid rocket motor is one of the important power systems of missiles, rockets and other space vehicles, and the structure design of three-dimensional charge is one of the core and most difficult tasks in the overall design of solid rocket motor. The main task of charge design is to determine the geometric configuration of the charge so that the internal ballistic performance of the engine during the combustion process meets the design requirements. By matching the performance of heterogeneous motor charges and effectively utilizing the existing data and knowledge of charge design, the efficiency of charge design can be improved and the development of intelligent design of solid motors can be promoted. At present, the commonly used performance matc...

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Application Information

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IPC IPC(8): G06F30/15G06K9/62G06F17/18
CPCG06F30/15G06F17/18G06F18/22
Inventor 武泽平孙婧博李国盛杨家伟王东辉王文杰张锡张为华
Owner NAT UNIV OF DEFENSE TECH
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