Research On The Chinese Chestnut's Shelling Mechanism Base On The FEA

The Chinese chestnut has the important economic value and the nutritional therapy value, moreover the nutrition rich, the taste is delicious. At present the Chinese chestnut planter has put into industrial production, its output enhances greatly, but Chinese chestnut's broken shell goes to the clothes always is in the intensive processing difficult problem, enormous influence Chinese chestnut's production processing and sale. Therefore, Chinese chestnut's broken shell goes to the question which the clothes is urgently awaits to be solved.The paper to Chinese chestnut's dry characteristic and the compression type, cut the type and the rubbing -like broken shell way has conducted the experimental study, and has carried on the finite element simulation analysis, by discussed the Chinese chestnut the broken shell mechanism. Main conclusion as follows:Through the drying test, has determined Chinese chestnut's security drying curve. Meanwhile to affects the Chinese chestnut moisture content the primary factor: The drying time, the dry temperature and Chinese chestnut's size has carried on the analysis, has obtained the moisture content and three between functional equations.Through to the Chinese chestnut compression mechanics characteristic experimental study, indicated along when X approaches the increase, Chinese chestnut's broken shell effect is best; The Chinese chestnut size, the Chinese chestnut moisture content, the loading direction and the loading speed are affects the Chinese chestnut broken shell strength size the primary factor. Has established between the Chinese chestnut broken shell strength and the Chinese chestnut size, the moisture content as well as the loading speed functional relationship.Through cuts mechanics characteristic to the Chinese chestnut experimental study, the moisture content, the loading speed is the influence cuts the broken shell strength the primary factor, has established between the broken shell strength and the loading speed, the Chinese chestnut size and the moisture content functional relationship.Carried on the compression separately, has cut and rubs three ways the broken shell experiments, finally indicated, rubbed the way the broken shell effect best, cut the way to be next, the compression way effect was worst.Has carried on the simulation with the finite element method to Chinese chestnut's broken shell mechanism, through to the pitch point strength cloud chart, the pitch point distortion and the pitch point total strain analysis, knew when Chinese chestnut compression, increase the broken shell effect along X direction to be best; In three work ways, rubs the way the broken shell effect to be best; Moreover, the Chinese chestnut husk force-distortion distribution, the crack move towards and so on to be consistent with the test result. Thus it may be known, may use the finite element method to carry on the simulation to Chinese chestnut's broken shell mechanism.