THE EFFECT OF THE SMALL DAMPING SLOSHING TO THE FLEXIBLE LAUNCH VEHICLE STABILITY

摘要

The sloshing with a small damping can easily make the vehicle control system unstable. In this paper new index to evaluate the effect of sloshing to the attitude stability of the vehicle is introduced. This index includes the effect of bending interference as well as the sloshing mass location. Nyquist plot analysis shows that the sloshing with the same index has the same effect to the attitude stability and the interference between sloshing and bending affects the vehicle stability significantly.