纵向竖条防晃板对液体晃动特性的影响

液体推进剂的晃动特性对大型液体运载火箭以及弹道导弹的飞行动力稳定性有很大的影响，为了使战略弹道导和航天运载器具有良好的飞行稳定性，就必须提高其内部液体推进剂的晃动阻尼，抑制液体的晃动，从而达到动力稳定的设计要求，常产加液体晃动阻尼的措施是在推进剂贮箱内安装防晃板。纵向竖条防晃板是一种常用的防晃挡板，该文通过对液体晃动时液体与纵向竖条防晃板之间的液动力所做的虚功与局部阻力所耗散的能量的计算，求出液本

Investigation of the Suppression Effect of the Vertical Baffle on the Liquid Slosh

The dynamic behavior of the liquid sloshing has great effect on the dynamic stability of the liquid filled space vehicle and the strategical ballistic missile. The liquid slosh has to be suppressed to meet design requirements of the flying dynamic stability. For this purporse,slosh damping of the liquid in the container has to be increased. Measures usually taken in the astronautical engineering are to install baffles in the propellant fuel container. The vertical baffle is often used in the liquid container of the rocket for liquid slosh suppression. In this paper,by calculating the energy dissipated by the local resistance and the virtual work made by the flow dynamic between liguid and the vertical baffle the increment of the sloshing parameter is approached,and a rough analysis of the suppression effect of the vertical baffle on the liquid slosh in a cylinderical tank is carried out,some valuable results are presented.