| Design and simulation research on the potato bionic digging shovel |
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| DOI：10.7606/j.issn.1000-7601.2014.01.045 |
| Key Words: potato digger bionics dig shovel LS-DYNS drag reduction |
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| Abstract: |
| In order to provide a digging shovel with higher efficiency of drag reduction, a shovel was designed out for potato digger according to the stereomicroscope photo about first claw toe of Gryllotalpa hind tibia. The contour point of claw toe outward curve and inward curve were obtained using AutoCAD software, point coordinate values were leading-out by the commands of LIST. The claw toe contour was fitted with the help of Excel software. The model of bionic shovel was established by the Solidworks software. The process of cutting soil with ordinary shovel and bionic shovel were simulated by the Ls-Dyna software and measured the soil resistance for these two shovels. The simulation results showed that soil resistance was reduced approximately 61% by the bionic shovel compared with the normal shovel. The design can be supplied a solution thinking for the drag reduction technical requirements of the potato digger with a novel structure. |