| 摘要 |
FIELD: powder and grain material storage, particularly devices, which prevent bridge formation in material during material distribution from hoppers. ^ SUBSTANCE: method involves determining type of grain material flow leaving the hopper, place of bridge breaking device installation, natural frequency of grain material flowing out of the hopper and frequency of bridge breaking device oscillation, which is determined from graph on the basis of the following inequality: where k=1 s-1, omegalambda - frequency of bridge breaking device oscillation, s-1 and omegao - natural frequency of grain material flowing out of the hopper, s-1. ^ EFFECT: increased controllability and rate of grain material unloading from hopper. ^ 1 dwg, 1 tbl |
