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| Topology optimization design of roller of dehulling machine for oil-tea camellia seed based on bidirectional progressive structural optimization |
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| DOI： |
| KeyWord:BESO dehulling machine for oil-tea camellia seed finite element model |
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| Abstract: |
| Roller is the key component of dehulling machine for oil-tea camellia seed. The design level of roller plays a key role in the quality and output of dehulling machine. For the existing design problems of heavy weight and excessive moment of inertia of roller，the new structure of the roller was designed by the bidirectional progressive structural optimization (BESO）method. The mathematical model of topology optimization for the roller of dehulling machine for oil-tea camellia seed was established. Simulation experiment was carried out using Abaqus，and the model structural was optimized by the Python optimization program. According to the optimization results and simulation experiment，new roller was designed. Under the same load constraint，comparing the stress and displacement of the rollers before and after optimization，the stress distribution of new roller was more uniform. When the strength and stiffness of the new structure was within the allowable range，the volume and mass of the new roller reduced by 37.2% compared with those of the original roller，so the material cost of the roller was reduced. The moment of inertia of roller decreased by 31.8%，and the starting and braking time were shorter，at the same time，a smaller power motor could be selected to effectively reduce the power consumption of the whole machine. The method provided a new idea for the design of the subsequent roller. |
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