摘要
简介了导弹高速动态实验采用的设备和实验方法 ,研究了折合频率 ,平均迎角和空气压缩性对基本十字翼导弹纵向动态气动特性的影响。
The dynamic aerodynamical characteristics of missiles are important design basis for high performance missiles.Used dynamic force method to measure normal force and pitching moment for deferent attack angles were car ried out.Maximum dynamic normal force coefficients and cN ～ α hysteretic loop of missiles increase with increasing mean attack angles,reduced frequency and Mach number.At k=0.0158maximum dynamic normal force coefficients of the missiles is 14% higher than that of static. By numerical integration according to eq.(1),the pitching resistance deriva teξ,which is used to check dy namic stability of missiles was computed.When ξ is positive,missiles are horizontal dynamic stability.Results shown that ex cept for higher oscillatory frequency and 10°of mean attack angle,missile is dynamic stability.
出处
《应用力学学报》
CAS
CSCD
北大核心
2002年第1期31-34,共4页
Chinese Journal of Applied Mechanics
关键词
导弹
风洞
动态测力实验
折合频率
马赫数
振幅角
missile,windtunnel,dynamic force test,reduced frequency ,Mach number,oscillatory angle.
