On the Periodity Appeared in the Variation of the Flow-out Quantity of Granules Flowing-out from the Hopper (Part 1)

ホッパーより流出する粉粒体の流出量変動の周期性について 第1報

On the Periodity Appeared in the Variation of the Flow-out Quantity of Granules Flowing-out from the Hopper (Part 1)

Creators Hayano Nobuo

Creators Yahiro Takamichi

Creators Harada Norio

Flowing out mechanism of granules from the cylindrical bin with the circular aperture are investigated. The existence of two frequencies f_1 (lower) and f_2 (higher) are recognized. f_1 increases rapidly with the diameter of aperture. Besides, f_2 are kept almost constant with the variation of the size of the aperture. Both analysis by autocorrelation coefficient and by periodgram of the recording on the flowing out guantity are in agreement gualitatively with the gloval structures of the system.

[ISSN]0372-7661

[NCID]AN00244228