高速旋转炮弹宽海拔弹道解算方法

doi:10.3969/j.issn.1000-1093.2021.01.024

摘要/Abstract

摘要： 为彻底改进传统以实弹射击试验为主研制射表的方法，创建了适应宽海拔高速旋转弹弹道解算新方法。建立弹丸非线性姿态运动数学模型，用于计算起始扰动对平均弹道影响；建立弹丸阻力系数随海拔高度变化模型、弹道符合系数与射角关系模型，用于计算高原空气阻力随海拔非线性变化对高原弹道的影响；提出高原和平原射表交接阶梯抑制方法，减小平原射表和高原射表在衔接高度段的原理误差。研究结果表明，新型弹道解算方法和用该方法设计的高原射表经某自行高炮试验证明，具有较高的精度，适用于在0~4 500 m宽海拔范围作战使用。

关键词: 高速旋转弹, 宽海拔, 弹道解算, 阶梯抑制

Abstract: A new method which gives priority to the idea of theoretical calculation and simulation with data of a few tests is proposed to improve the traditional method of firing table development which depends on live firing test radically. A nonlinear motion equation of projectile coupled attitude is established, which is used to calculate the influence of initial disturbance on mean trajectory. The model of the variation of projectile resistance coefficient with the altitude is improved on the basis of the relational model of the ballistic coincidence coefficient and the firing angle of gun. Based on the feature information extracted from a few of high-precision ballistic test data, the theoretical calculation firing table is modified to achieve higher precision. In order to reduce the principle error of the intersection for two firing tables used on plateau and plain individually, a method of smoothing the connection of two firing tables is created. The correctness of the proposed method is proved by the results of the live fire tests, and the precision of the firing table is high enough, which is fully suitable for the applications at the altitude from 0 m to 4 500 m.

Key words: highspinningprojectile, widealtitude, trajectorycalculation, stepsuppression

中图分类号:

TJ012.3⁺1

丁天宝，何朝，王良明，林智伟. 高速旋转炮弹宽海拔弹道解算方法[J]. 兵工学报, 2021, 42(1): 209-213.

DING Tianbao， HE Zhao, WANG Liangming, LIN Zhiwei. Calculation Method of Firing Trajectory of High Spinning Projectile Adapted to Wide Altitude[J]. Acta Armamentarii, 2021, 42(1): 209-213.

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