Development of correction strategy of muti pulse constrained projectile based on supersonic numerical simulation

DOI:	10.11809/bqzbgcxb2025.02.002
Keywords:	multi pulse control; aerodynamic characteristics; trajectory correction; Monte Carlo method
Abstract:	In order to study the correction ability of a high spinning projectile with lateral impulse in supersonic motion, the ballistic control performance and the impact points under lateral impulse were analyzed. The aerodynamic model was discussed with various calculation conditions under high Mach state by using fluid mechanics software. Based on the aerodynamic coefficients, the single constraint and the multivariate constraint analysis method were utilized to study the influence on the correction ability with different perturbation and key parameters. The distribution of impact points and the control error under the disturbance state were calculated by Monte Carlo method. The results show that the overall aerodynamic characteristics of projectile with lateral impulse in the supersonic state are generally the same as the ordinary tail controlled projectile. When it is in a high spinning motion at a small attack angle, the correction effect before the trajectory vertex is significantly obvious; the larger the total impulse and the later the start up time in the controllable range, the better the trajectory correction ability; the circular error probable (CEP) of the impact points under the strong disturbance state based on the optimal scheme can reach 12 m, which proves that the strategy has better correction effect and stability effectively, and has higher theoretical reference and engineering value.
Issue:	Vol. 46 No. 2 (2025)
Published:	2025-02-28
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