Ballistic trajectory performance prediction software system in solid engine

Abstract

The invention discloses a ballistic trajectory performance prediction software system in a solid engine. The system comprises an input display module, a calculation module and an output display module, wherein the input display module is used for displaying an input interface of the engine parameters, the input interface is used for inputting the engine parameters, and the engine parameters comprise the charging parameters, the working environment initial parameters, the spray pipe conventional parameters, the spray pipe types, the propellant combustion speed parameters, the charging combustion surface meat thickness retreating data and the design parameters of a beveling spray pipe; the spray pipe types comprise the conventional spray pipes and the beveled spray pipes, and the design parameters comprise the number of the spray pipes, the spray pipe inclined angles, the spray pipe expansion half angles, the spray pipe beveled angles, the spray pipe circumferential layout angles, the cover shaft intersection distances, the spray pipe symmetrical section lengths and the spray pipe beveled part calculation step lengths; the calculation module calculates the engine performance parameters according to a preset algorithm to obtain an inner ballistic trajectory performance calculation result, and the output display module outputs and displays the inner ballistic trajectory performancecalculation result. According to the method, the ballistic performance in the inclined and beveled spray pipe engine can be calculated.

Description

technical field [0001] The invention relates to the technical field of solid motors, in particular to a software system for predicting internal ballistic performance of solid motors. Background technique [0002] The traditional internal ballistic performance prediction software of solid engines can usually only calculate the internal ballistic performance of symmetrical straight nozzles. For engines with inclined nozzles such as split engines, the traditional performance prediction software is no longer applicable, and it is necessary to artificially tilt the The influence of the beveled nozzles on the internal ballistic performance is corrected. For the shroud engine with multiple asymmetrical beveled nozzles, it is necessary to further calculate the resultant force generated by the multiple nozzles. The calculation is more cumbersome, which is not conducive to the improvement of engine performance. Rapid prediction and accurate prediction seriously restrict the design eff...

AI Technical Summary

Problems solved by technology

[0002] The traditional internal ballistic performance prediction software of solid engines can usually only calculate the internal ballistic performance of symmetrical straight nozzles. For engines with inclined nozzles such as split engines, the traditional performance prediction software is no longer applicable, and it is necessary to artificially tilt the The influence of the beveled nozzles on the internal ballistic performance is corrected. For the shroud engine with multiple asymmetrical beveled nozzles, it is necessary to further calculate the resultant force generated by the multiple nozzles. The calculation is more cumbersome, which is not conducive to the improvement of engine performance. Rapid prediction and accurate prediction seriously restrict the design efficiency and design level of this type of engine

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