Calibration and experiment of discrete element model parameters of Zanthoxylum bungeanum

Zanthoxylum bungeanum is a characteristic spice in culinary culture. This article focuses on the lack of intrinsic and contact parameters for studies discrete element tribute pepper from Hanyuan. to provide support mechanized harvesting bungeanum. The EDEM software was used establish model granules. granules, such as Three-dimensional dimension, density, Poisson’s ratio, elastic modulus, were measured through experiments. recovery coefficient, static friction rolling coefficient between granules Dragon Skin 30 silicone sheets also measured. Subsequently, materials, well obtained simulation experiments, steepest climb test, Quadratic regression orthogonal rotation combination test. Finally, Angle repose verification results showed that materials 0.437, 0.758, 0.0136, respectively, while those 0.378, 0.56, 0.0143, respectively. error angle 0.204%, verifying reliability method great significance design optimization harvesters.