Analysis of Spin Rate and Correction ability of Two-dimensional Trajectory Correction Fuze for 155 mm Fixed-canard Dual-spin Projectiles

被引：0
|
作者：
Shi K. [1 ,2 ]
Zhang Q. [3 ]
Liu M. [1 ]
机构：
[1] School of Aerospace, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi
[2] AVIC Shaanxi Huayan Aero-Instrument Co., Ltd., Hanzhong, 723102, Shaanxi
[3] Jinhang Digital Technology Co., Ltd., Beijing
来源：
Binggong Xuebao/Acta Armamentarii | 2019年 / 40卷 / 08期
关键词：
155 mm dual-spin projectile; 7-DOF dual-spin model; Canard aerodynamic parameter; Correction ability; Dual-spin rate; Two-dimensional correction fuze;
D O I：
10.3969/j.issn.1000-1093.2019.08.005
中图分类号：
学科分类号：
摘要：
The premise of realizing the trajectory correction of two-dimensional trajectory correction fuze is to control the spin rate of fixed canards. Based on the 155mm fixed-canards projectile with two-dimensional trajectory correction fuze, the spin characteristics of projectile body and canards during dual-spinning are analyzed, respectively. A motion model of dual-spin stabilized projectile under the action of fixed canards is established. The two-dimensional trajectory correction fuze of 155 mm fixed-canard dual-spin projectile is simulated to calculate the aerodynamic parameters of canards by using CFD software. The dynamics equation of rolling channel is analyzed, and the characteristics of whole ballistic spin rate are analyzed from the following aspects: moment of inertia, moment of friction, rolling damping moment, and moment of canard guide roll moment. On the basis of spin rate control, the correction capability of two-dimensional trajectory correction fuze is evaluated. The simulated results show that 5.0-5.5 degrees of the rotating canards and 8-9 degrees of the modified canard can meet the requirement of balancing spin rate and the correction capability for control, and the simulated results of spin rate can represent the rotational speed characteristics of dual-spin-stabilized projectiles with course correction fuze and precision guidance kit. © 2019, Editorial Board of Acta Armamentarii. All right reserved.
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页码：1587 / 1595
页数：8
相关论文
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