摘要
本文验算了J-7飞机的稳定边界和前操纵边界,简单分析了其重心使用范围。进一步讨论,估算了J-7飞机和J-7改型机最小阻力的重心位置,对估算方法也作了简单介绍。结果表明:J-7改型机最小阻力重心位置较原J-7飞机有所前移,但是,只有在平尾处相对下洗角很大时,两者的最小阻力重心位置才有可能在稳定边界之内,否则均在稳定边界之外。
This paper checked stability boundary and front control boundary for J-7 aircraft, analysed simply it's operating range of the c.g. position, estimated and discussed the c. g. positions of minimum drag for J-7 aircraft and it's development type. It is indicated, the both c. g. positions of minimum drag are out of their stability boundaries, excepting their downwash is much larger, but the c. g. position of minimum drag for J-7 aircraft development type is more forward than it for J-7 aircraft.
出处
《飞行力学》
CSCD
北大核心
1991年第3期40-46,共7页
Flight Dynamics
关键词
最小阻力
重心位置
稳定性
操纵性
minimum drag
c. g. position
stability boundary
control boundary
