[1]刘 宣,闻 泉,王雨时,等.准抛物线形头部轮廓母线旋转弹的转速衰减特性[J].南京理工大学学报(自然科学版),2016,40(05):527.[doi:10.14177/j.cnki.32-1397n.2016.40.05.004]
 Liu Xuan,Wen Quan,Wang Yushi,et al.Decaying characteristics of rotating rate of projectile with quasi-parabola nose borderline[J].Journal of Nanjing University of Science and Technology,2016,40(05):527.[doi:10.14177/j.cnki.32-1397n.2016.40.05.004]
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准抛物线形头部轮廓母线旋转弹的转速衰减特性
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
40卷
期数:
2016年05期
页码:
527
栏目:
出版日期:
2016-10-30

文章信息/Info

Title:
Decaying characteristics of rotating rate of projectile with quasi-parabola nose borderline
文章编号:
1005-9830(2016)05-0527-05
作者:
刘 宣1闻 泉1王雨时1张志彪1唐华山2
1.南京理工大学 机械工程学院,江苏 南京 210094; 2.湖南兵器建华精密仪器有限公司,湖南 永州425024
Author(s):
Liu Xuan1Wen Quan1Wang Yushi1Zhang Zhibiao1Tang Huashan2
1.School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China; 2.Hunan Jianhua Precision Apparatus Co Ltd,Yongzhou 425024,China
关键词:
弹丸 转速衰减 准抛物线形头部轮廓母线 数值解算
Keywords:
projectiles rotating rate decaying quasi-parabola nose borderlines numerical calculation
分类号:
TJ43
DOI:
10.14177/j.cnki.32-1397n.2016.40.05.004
摘要:
该文应用空气动力学理论建立了头部轮廓母线为准抛物线的旋转弹丸的外弹道转速衰减数学模型。针对具体算例,借助Matlab软件进行了数值解算,利用Fluent软件通过极阻尼力矩系数数值仿真验证了模型可信度。运用该理论模型解得某准抛物线形头部轮廓母线旋转弹丸的顶点及落点转速数值,与斯列斯金修正式和指数式计算结果接近,最大相对误差不超过18%。该文结果可为引信离心自毁性能设计和破甲战斗部抗旋性能设计提供参考。
Abstract:
Using the aerodynamics theory,the mathematical model of the exterior ballistics decaying characteristic of rotating rate is set up for the projectile with the quasi-parabola nose borderline,and some examples are numerically solved by the Matlab.The credibility is veryfied by the coefficient of polar damping moment got from the Fluent.The value of the rotating rate of the projectile with the quasi-parabola nose borderline calculated by the theoretical model is close to the calculation results of the J Les Kim correction formula and the index formula,and the maximum relative error is less than 18%.The results can be used as a reference to the design of the fuze centrifugal self-destroying performance and the armor penetration warhead spin-resistant performance.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2015-11-10 修回日期:2016-05-24
作者简介:刘宣(1989-),男,硕士生,主要研究方向:智能化引信设计,E-mail:1046668283@qq.com; 通讯作者:王雨时(1962-),男,教授,主要研究方向:引信系统分析与总体技术,弹药系统安全性与安全引爆技术,E-mail:wyshi204@163.com。
引文格式:刘宣,闻泉,王雨时,等.准抛物线形头部轮廓母线旋转弹的转速衰减特性[J].南京理工大学学报,2016,40(5):527-531.
投稿网址:http://zrxuebao.njust.edu.cn
更新日期/Last Update: 2016-10-30