Calibration of Discrete Element Simulation Parameters for Powder Screw Conveying

Table 2

Parameters of Plackett-Burman experiment.

Symbol	Parameters	Low level	High level
A	Wheat flour-wheat flour restitution coefficient	0.15	0.3
B	Wheat flour-wheat flour static friction coefficient	0.2	0.4
C	Wheat flour-wheat flour rolling friction coefficient	0.05	0.1
D	Wheat flour-stainless steel restitution coefficient	0.15	0.3
E	Wheat flour-stainless steel static friction coefficient	0.2	0.4
F	Wheat flour-stainless steel rolling friction coefficient	0.1	0.2
G	JKR	0.1	0.5
V1	Virtual parameters 1	−1	1
V2	Virtual parameters 2	−1	1
V3	Virtual parameters 3	−1	1
V4	Virtual parameters 4	−1	1