Comparison of the finite element simulation and experimental results of disc plough
Mountain in the Drucker - Prager ideal elastoplastic model is limited, comparison and analysis of the low speed 2.5 km/h when the situation. Usually achieved by the results of finite element analysis results are lower than the indoor test. Because of the limitedelement underestimate a plough soil contact and friction coefficient. Although acorrect estimate of Bo in disc plough surface on soil volume is very difficult, but thefinite element analysis and the experimental error is less than 10%, compared with its'has sample, Bionic Plow 8 in reducing the ploughing resistance. But the drag reduction efficiency, up to 15%, which reduced the convex hull unit ploughing resistance obvious. The test to reduce the ploughing resistance reached 19%. The finite element model mainly depends on the contact friction of soil plow surface,geometry and processing to obtain the best results.
The finite element model mainly depends on the contact friction of soil plow surface,geometry and processing to obtain the best results. The model can solve the nonsmooth structure of small parcels of air, which may affect the accuracy.
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