格栅尾翼布局轨控干扰性能研究
Study on Attitude-orbit Control Interference Performance of Grid Fin Layout
李小林 1杨帆 1王楷 1吴王浩 1马印锴1
作者信息
- 1. 上海机电工程研究所,上海 201109
- 折叠
摘要
针对喷口与格栅翼不同布局的轨控喷流气动干扰问题,使用计算流体力学(CFD)方法计算了典型工况的无喷、喷流全弹主要气动分量和部件气动力.对比了不同轨控喷流方向与格栅周向位置组合的纵向和横向气动干扰.研究结果表明:纵向喷流时,周向相同型(×-×)布局和周向交错型(×-+)布局都会产生较大的俯仰干扰力矩,主要由弹身产生;横侧向喷流时,×-+布局会产生较大的滚转干扰力矩,喷流导致的左右格栅受力不对称产生,×-×布局不产生该力矩.×-×布局的综合干扰性能优于×-+布局.
Abstract
The main aerodynamic forces and component aerodynamic forces of a typical design point without and with jets are calculated with the computational fluid dynamics(CFD)methods,aiming at the attitude-orbit control interference problem of the nozzle and grid fin layout.The longitudinal and lateral aerodynamic forces of different combinations of circumferential positions of grid fins and jet directions are compared.The results show that under longitudinal jets,the interference of the pitching moment mainly generated by the missile body is significant whether the layout is ×-× or ×-+;while under lateral jets,the interference of the rolling moment mainly generated by the force asymmetry of the grid fins is significant when the layout is ×-+but little when the layout is ×-×.Therefore,the comprehensive interference performance of the ×-× layout is superior to that of the ×-+layout.
关键词
格栅翼/布局/轨控/喷流/干扰性能Key words
grid fin/layout/attitude-orbit control/jet/interference performance引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据