Solid rocket motor charge performance matching method, device and equipment

Abstract

This application relates to a solid rocket motor charge performance matching method, device and equipment. The method includes: obtaining the signed distance field of each charge configuration to be matched; performing interval statistics on the sign distance field to obtain the charge of each charge configuration Interval vector; the cosine similarity method is used to calculate the similarity of each charge interval vector, and the similarity heat map of each charge configuration is obtained; the burning surface curve of each charge configuration is compared with the similarity heat map to obtain Charge performance matching results. The three-dimensional charge is represented by the symbolic distance field, and the structural parameters of the charge are stored in the form of the distance field. At the same time, the dimensionality reduction storage of the data is realized based on the intrinsic generalized decomposition, which saves the memory space; the interval vector of the charge is obtained by processing the distance field and Based on the cosine similarity calculation method, the intelligent matching of the configuration and performance of heterogeneous charges 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...

AI Technical Summary

Problems solved by technology

However, in the process of realizing the present invention, the inventors found that the aforementioned traditional heterogeneous charge performance matching method has the technical problem of poor performance matching effect

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