the dataset of Design of a centrifugal acceleration system for high velocity injection of impurity pellet into EAST tokamak

Thesystem is composed of the dropper, the centrifugal accelerator, vacuum pumping system and the diagnostic unit.The centrifugal accelerator is designed to accelerate the pellet by the rotating arm driven by a KYKY F100turbomolecular pump with an adjusted rotating velocity from 0 to 42,300 rpm.

In order to evaluate the stabilityof the rotating arm, the stress distribution of the rotating arm at different rotating velocities is analyzed by thestress field simulation, and the result shows the maximum stress of the rotating arm appears at the transitionposition between the large circular groove and the acceleration groove. By simulation analysis, it is noted thatthe arm can work steadily at 2500 rad/s (corresponding to about 398 Hz arm rotation frequency) rotating velocityand may be broken at 4000 rad/s (637 Hz).