关键词: 芒果, 行间运输车, 离散元, 降损性能, 损伤等级

Abstract: Due to their collision from picking to packing and transportation, mangoes are easy to be damaged. At present, little is known about the relationship between stress and damage of mangoes. The mangoes particle model is established by the discrete element method (DEM), and the comprehensive stress of mangoes in the transportation process of inter row transport vehicle is calculated through the joint simulation of ADAMS and EDEM, the loss reduction performance of interline transport vehicle is 13.6% with the collision process of mangoes simulated by the pressure test of texture analyzer, the damage areas of mango under different pressure are obtained, the mango damage area with less than 70.6mm2 is defined as grade 1 fruit, and that of more than 488mm2 is defined as a category 5 fruits. Finally, the actual transportation is tested by the inter row transport vehicle of the research group, the maximum error between the simulation results and the test is 13.5%, the results are accurate.

Key words: mango, interrow transport vehicle, discrete element, loss reduction performance, damage level