Solid rocket motor mapping design method, device and equipment

Abstract

This application relates to a solid rocket motor mapping design method, device and equipment. The method includes: obtaining the target thrust curve of the solid rocket motor and the original parameters of the engine; performing geometric scaling on the original parameters of the engine; calculating the shell according to the engine parameters obtained after geometric scaling area, thermal insulation layer area, charge burning area and meat thickness; calculate nozzle throat area according to engine parameters and charge burning area; determine engine combustion rate by optimization algorithm and determine throat diameter according to nozzle throat area; Engine parameters, meat thickness, engine combustion rate and nozzle throat area, generate the design thrust curve; calculate the root mean square error between the design thrust curve and the target thrust curve, and use the optimization algorithm to adjust the engine combustion rate according to the root mean square error; the output mean The overall mapping design parameters of the engine corresponding to the minimum square root error. By adopting the above technical solutions, the technical effect of greatly improving the design efficiency is achieved.

Description

technical field [0001] The present application relates to the technical field of aircraft engine design, in particular to a solid rocket motor mapping design method, device and equipment. Background technique [0002] Solid rocket motors are one of the important power systems of space vehicles such as missiles and rockets. Aiming at the accumulation of solid rocket motor design schemes, research on the intelligent reuse method of heterogeneous engine scheme data is established to realize the reuse of heterogeneous engine design scheme data and knowledge. It can promote the intelligent development of the overall design of solid rocket motors. At present, the common methods for reuse of heterogeneous solid engine design schemes are as follows: First, rely on manual experience to improve existing cases and design engine-related parameters. This type of method is most widely used in industrial production, because the production department has been engaged in engine production a...

AI Technical Summary

Problems solved by technology

This kind of method designs the engine directly according to the design requirements and design principles, does not rely on existing data and knowledge, and lacks the reuse of data, resulting in a waste of resources on existing knowledge

However, in the process of realizing the present invention, the inventors found that in the above-mentioned traditional method for reusing the design scheme of heterogeneous solid rocket motors, there is a technical problem of low design efficiency

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