CAJ | 학술논문

为了实现全程可控弹道修正弹的修正方案,通过对弹道模型的分析确定了增阻系数是实现这一方案的关键. 以质点弹道模型为基础,采用多项式拟合的方法确定射程修正量与阻尼器展开时刻的关系式,利用分段解算弹道的方法确定多项式系数,最后采用二分法完成对阻尼器展开时刻的计算,在MATLAB软件平台下对不同增阻系数下的弹道修正效果进行了仿真分析. 仿真结果表明,随着修正量的增加,增阻系数越大,弹道解算时间越长,弹丸的落角逐渐增大、落速迅速减小;随着增阻系数的增加,弹丸修正能力显著提高,但随着修正量增加,落点精度逐渐降低. 其次对最优增阻系数下的修正弹进行了仿真及试验研究,试验结果与仿真结果相互吻合,为全程可控弹道修正弹增阻系数的选择提供了依据.
위료실현전정가공탄도수정탄적수정방안,통과대탄도모형적분석학정료증조계수시실현저일방안적관건. 이질점탄도모형위기출,채용다항식의합적방법학정사정수정량여조니기전개시각적관계식,이용분단해산탄도적방법학정다항식계수,최후채용이분법완성대조니기전개시각적계산,재MATLAB연건평태하대불동증조계수하적탄도수정효과진행료방진분석. 방진결과표명,수착수정량적증가,증조계수월대,탄도해산시간월장,탄환적락각축점증대、락속신속감소;수착증조계수적증가,탄환수정능력현저제고,단수착수정량증가,낙점정도축점강저. 기차대최우증조계수하적수정탄진행료방진급시험연구,시험결과여방진결과상호문합,위전정가공탄도수정탄증조계수적선택제공료의거.
In order to realize the correction project of a whole-course-controllable ( WCC ) trajectory correction projectile,through the analysis of a trajectory correction model,this paper presents how to determine the increase-resistance-coefficient( IRC) is the key to realize the correction project. Based on the particle trajectory model, a polynomial fitting method is utilized to determine the equation between correction range and the damper opening time. Polynomial coefficients are determined by the method of piecewise calculating trajectory. A bisection method is used to get the result of the deployment time. On the MATLAB software platform,the trajectory correction effect of different IRC is simulated. The simulation results show that with the increase of the correct distance and the IRC, the ballistic calculation time increases, the falling angle of a projectile progressively increases, and the falling velocity of a projectile decreases rapidly;with the increase of the IRC, correction capability is enhanced significantly. However,with the increase of the correction distance,the landing accuracy decreases gradually. Secondly, the simulation and experimental research are done on the correction projectile based on the optimal IRC. The test and the simulation results agree with each other,which provides the principle to select an IRC for WCC trajectory correction projectile.