一引言一些大型末级运载火箭,例如使用低温推进剂的人马座和土星S—ⅣB,在滑行轨道上采用正推方案使推进剂始终沉底,存在低g晃动问题,为此进行了大量的试验和理论研究。随着我国宇航事业的发展,在有关型号的研制中,也有类似问题需要解决。几年来,曾用“歼教一五”做低g飞行来研究与低g晃动有关的问题,并取得一些结 I. INTRODUCTION A number of large-scale launch vehicles, such as Sagittarius and Saturn S-IVB using cryogenic propellants, have been used to push propellants all the way to the bottom on gliding orbits with low g-rocking problems, And theoretical research. With the development of China’s aerospace industry, in the development of the relevant models, there are similar problems to be solved. In the past few years, the issue of low g-shaking has been studied with a “low-g-flight” mission called “F-15” and some knots have been made