摘要
针对间隔纸靶法纸靶摆放间距影响试验结果的问题,结合六自由度刚体外弹道模型,利用Matlab软件解算得到章动角值,采用最小二乘法和蒙特卡洛法对章动角值进行拟合,得到不同摆放间距对试验结果的影响。根据仿真结果提出间隔纸靶法间距改进方案:首先将纸靶间距按照4~8 m进行布置,试验1发得到试验结果;然后根据试验结果计算章动周期;再将摆放间距与计算得到的章动周期进行比较,若纸靶间距不在半周期的影响范围内,则认为该次试验结果可信;否则后续试验通过改变纸靶间距,使之不处于半周期前后1 m范围内来得出可信的试验结果。改进后的试验方案解决了因纸靶间距选择不合适而造成的试验结果误差偏大问题,可为章动角试验进行指导。
In order to solve the problem that the placement spacing of the paper target in the spacer paper target method affects the test results,combined with the six-degree-of-freedom rigid in vitro ballistic model,the nutation angle value is calculated by Matlab software,and the nutation angle value is fitted by the least squares method and Monte Carlo method,and the influence of different placement spacing on the test results is obtained.According to the simulation results,an improved scheme for the spacing of the spaced paper target method was proposed:firstly,the spacing of the paper target was arranged according to 4 m~8 m,and the test results were obtained in test 1.Then,the nutation period is calculated according to the test results.Then,the placement spacing was compared with the calculated nutation period,and if the paper target spacing was not within the influence range of the half-period,the test results were considered credible.Otherwise,the follow-up test results can be obtained by changing the spacing of the paper targets so that they are not within 1 m before and after the half-cycle.The improved test scheme solved the problem of large error in the test results caused by the inappropriate selection of paper target spacing,and could be used to guide the nutation angle test.
作者
霍卫超
糜晨曦
闻泉
王雨时
HUO Weichao;MI Chenxi;WEN Quan;WANG Yushi(School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)
出处
《探测与控制学报》
CSCD
北大核心
2024年第6期20-28,共9页
Journal of Detection & Control
关键词
引信环境
外弹道学
间隔纸靶
数据拟合
间距优化
fuze environment
external ballistics
spacer paper targets
data fitting
spacing optimization
