异型弹芯飞行稳定性判据  

Flight Stability Criterion for a Non-Circular Cross-Sectional Projectile

作　　者：孙瑞胜[1] 薛晓中[1] 孙传杰[2] 

机构地区：[1]南京理工大学动力学院,南京210094 [2]中国工程物理研究院结构力学所,四川绵阳621900

出　　处：《弹箭与制导学报》2005年第S5期559-560,563,共3页Journal of Projectiles,Rockets,Missiles and Guidance

基　　金：国家自然科学基金委员会;中国工程物理研究院 NSAF 联合基金(10376011)

摘　　要：传统大长细比圆截面杆式弹在超高速发射时的膛内强度和飞行挠度问题始终是困扰人们的技术难题。异型截面弹芯以其具有很好的超高速发射强度和较强的终点毁伤性能等优点,而日益受到人们关注,文中根据异型弹芯的特点,建立其空中刚性运动数学方程,并详细推导了其攻角方程,得出飞行稳定性判据,同时分析其与一般炮弹稳定判据的异同,为异型弹芯杆式弹的设计及其特性分析提供了理论依据。It is a troubling problem about ejected intensity in the chamber and flight deflection for traditional circular cross-sectional projectiles which are ejected at supersonic velocity.A projectile with non-circular cross-sectional shape is getting more and more attention,which has stronger ejected intensity and better terminal-damaging effect.According to characteristic of NCCSP.by establishing the math movement equations in the air and working out the AOA(angle of attack) cquaton,this paper acquires the flight stability criterion.In the last,the difference between stability criterion of common projectiles is analyzed.

关 键 词：异型弹芯 运动稳定性 稳定判据 

分 类 号：TJ012.3[兵器科学与技术—兵器发射理论与技术]