Finite element analysis of cotton serrated ginning state based on three-dimensional braided modeling
注意：本论文已在 Journal of Natural Fibers, 2019（2）:1-4.发表
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（SCI收录，EI收录：20194407600728）
Di Wang a, Xiaochuan Chena, Yong Li b, Jun Wang c, and Yiping Qiu c
aCollege of Mechanical Engineering, Donghua University, Shanghai, China;
bCollege of Mechanical and Electronic Engineering, Tarim University, Aral, Xinjiang, China;
cCollege of Textiles, Donghua University, Shanghai, China
Abstract
In order to analyze the stress state of the seed cotton in the process of cotton gin, a new model for cotton, namely three-dimensional braided cotton model, is presented based on the laminated cotton model and the idea of three-dimensional braided composites. The model consists of cotton fiber bundles arranged according to the unit cell structure of a three-dimensional four-directional braided composite material. The fiber bundle has a circular section and the shape of the cross section remains unchanged along the axial direction. Based on this model, the serrated ginning process is simulated using finite element analysis. By analyzing of the effects of different moisture regain and speed on the serration cotton ginning process, the results show that the simulation results accord with the actual situation and the model has certain application value. Compared to the laminated cotton model, the three-dimensional braided cotton model has been improved obviously. In terms of model structure, the three-dimensional braided cotton model is closer to the actual situation of cotton than the existing laminated cotton model. The whole model in the laminated cotton model is an entity, which is bonded together by multiple layers of single-layer panels at different angles. The three-dimensional braided cotton model takes into account the intertwining of fibers and has a certain gap.
Keywords
cotton gin, finite element model, ANSYS, moisture regain
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作者点评：
本文为世界上第一次采用三维编织模型对棉朵进行的有限元建模！2026.7.
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