Abstract: Virtual dynamic experiment was carried out on mud-fruit separation of water chestnut harvester by muti-disciplinary collaborative simulation. Firstly,virtual prototype of mud-fruit separation equipment was set up, and then dynamic simulation was carried out on its’ rigid-flexible coupled dynamic model to get motion law of vibration equipment. Subsequently particle system model of water chestnut-mud was created and discrete element simulation was carried out on it. Several simulation experiments were carried out by changing the thickness and wideness of spring steel plate. The result showed that separation effect was better with the increasing thickness of the spring steel plate in certain extent, but the wideness of it had less impact.

Key words: water chestnut harvester, mud-fruit separation, dynamic simulation, coupled simulation