| Research on the drag reduction performance of potato bionic digging shovel |
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| DOI：10.7606/j.issn.1000-7601.2018.03.42 |
| Key Words: digging shovel bionics potato discrete element method (DEM) drag reduction |
| Author Name | Affiliation | | SHI Lin-rong | College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | ZHAO Wu-yun | College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | SUN Wei | College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | SUN Bu-gong | College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | ZHANG Hua | College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou, Gansu 730070, China |
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| Abstract: |
| According to the stereoscopic microscopic photograph of first toe of claw toe in forefoot of the mole cricket has designed the shovel of the excavator and carried out the research for the drag reduction and pulverized soil performance, based on the discrete element method carried out the numerical simulation process for the bionic shovel excavated soil. In order to protrude the good excavating performance of the bionic shovel, under the same condition compared with the ordinary shovel carried out the comparison of the simulation results. The results showed that: As compared with the ordinary shovel, the forward resistance of the bionic shovel was reduced 11.36% and the vertical direction was reduced 17.65%. Comparing the number of soil particle adhesion between two kinds of shovel excavated soil, we can know the soil crushing rate of the bionic shovel was higher than ordinary shovel by 2.68%. The bionic excavating shovel can shear and break the uplift soil and gradually reduce the horizontal and vertical resistance, so it has a good application prospect. |
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