Construction and finite element simulation of cotton model for sawtooth cotton gin with cotton seed based on fractal theory
注意：本论文已在Textile Research Journal. 2020,90(23-24):2755-2768.发表
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(SCI收录,EI收录：20202408807427)
Wen Hu1, Xiaochuan Chen1 , Jun Wang1 and Yong Li2
1.Donghua University, China
2.College of Mechanical and Electronic Engineering, Tarim University,China
Abstract
In order to improve the efficiency of cotton ginning and optimize the parameters of cotton ginning, the process of cotton ginning was simulated by finite element method. Based on the fractal principle, a new cotton model was established by observing the morphological structure of cotton: the fractal cotton model with cottonseed. The model takes into account the existence of seeds in the actual cotton, and the fiber bundles are distributed according to the fractal structure, and the fiber bundles have a circular section. The finite element simulation of the model was carried out by workbench, and the viscoelastic material parameters of cotton fibers were determined under different moisture regain, the effects of different moisture regain and rotation speed on the serration cotton ginning process were analyzed, and the stress and strain nephograms of cotton at different times were checked. The simulation results show that when moisture regain is 8.5%, the ginning efficiency is the highest. The higher the speed of sawtooth, the more severe the effect of ginning, but too high speed will also affect the quality of raw cotton. The results showed that the simulation conclusions were in line with the actual situation, and the model had certain application value.
Keywords
sawtooth cotton gin, workbench, finite element model
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作者点评：
本文为世界上第一次采用分形方法对棉纤维集合体进行的有限元建模！2026.9.
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