Measurement and Calibration of DEM Parameters of Soybean Seed Particles

In discrete element method (DEM) simulations, accurate simulation parameters are very important. For ellipsoidal soybean seed particles, the rolling friction coefficient between particles (RFCP-P) and coefficients particle boundary (RFCP-B) difficult to measure experimentally therefore need be calibrated. this paper, of three varieties with different sphericities were taken as research objects. Through analysis repose angle self-flow screening, it was shown that above two needed accurately addition, sensitivity RFCP-P RFCP-B analyzed by simulating test. The results showed had a significant effect on test angle, little angle. Therefore, calibrated using single-factor mixed organic glass spheres. accuracy calibration verified rotating cylinder screening