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首页> 外文期刊>Journal of guidance, control, and dynamics >Thrusters Pairing Guidelines for Trajectory Corrections of Projectiles
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Thrusters Pairing Guidelines for Trajectory Corrections of Projectiles

机译：弹道修正的推进器配对指南

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摘要

A novel method for correcting the trajectory of spin- and fin-stabilized projectiles using pairs of impulse thrusters located away from the center of mass is described in this paper. The impulses are generated from the detonation of a very small quantity of explosive. By locating the impulse thrusters away from the center of mass, it is possible to significantly increase the trajectory correction. This is explained by the fact that, in such a case, the deflection results from the aerodynamic jump due to the projectile oscillation in addition to that of the impulses. An optimal combination of thrusters can be achieved by considering pairs of impulses that have the double objective of maximizing the deflection and minimizing the drag due to the oscillations. In this paper, the linear theory of ballistics is used to develop an analytical model representing the motion of a projectile subjected to impulse thrusters. Using the linearized equations of angular motion and considering ideal cases, the optimization scheme for using double impulses is defined by a set of three rules. The latter are then assessed in the case of actual projectiles, using six-degree-of-freedom computations. The course correction process for a 30-mm fin-stabilized air-defense projectile and a standard 105-mm spin-stabilized artillery shell are presented.
机译：本文介绍了一种新颖的方法，该方法使用远离质心的成对脉冲推进器来校正自旋和鳍稳定弹丸的轨迹。脉冲是由极少量炸药的爆炸产生的。通过将脉冲推进器的位置远离质心，可以显着提高轨迹校正。这可以通过以下事实来解释：在这种情况下，偏转是由气动冲击引起的，除了冲击之外，还有由于弹丸振荡引起的气动跳跃。推进器的最佳组合可以通过考虑成对的脉冲来实现，这些脉冲对具有最大化偏转和最小化由于振荡引起的阻力的双重目的。在本文中，弹道学的线性理论被用于建立一个分析模型，该模型代表弹丸在脉冲推进器作用下的运动。使用角运动的线性方程式并考虑理想情况，使用三个规则的集合定义了使用双脉冲的优化方案。然后在实际弹丸的情况下，使用六自由度计算来评估后者。提出了一种30毫米鳍稳定防空弹丸和标准105毫米自旋稳定火炮弹的航向校正方法。

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