Construction and finite element simulation of the saw type gin stand using fractal theory.

The process of cotton ginning was simulated by the finite element method in order to improve and optimize the efficiency of the process. Based on the fractal theory, a new cotton model was established by observing the morphological structure of cotton: the fractal cotton model with cotton seed. Considering the existence of seeds in actual cotton, the model assumes that the cotton fiber bundles are distributed in a fractal structure and the section is simplified as a circle. The finite element simulation of the model was carried out using ANSYS Workbench software, and the viscoelastic material parameters of cotton fibers were determined under different moisture content, the effects of different moisture contents and rotation speeds on the saw type gin stand were analyzed, and the stress and strain nephograms of cotton at different times were checked. The simulation results showed that when moisture content was between 6.1% and 7.8%, the ginning efficiency is the highest. The higher the speed of the saw tooth, the more severe the effect of ginning, but too high a speed will also affect the quality of the cotton lint. The results showed that the simulation conclusions were in line with the actual situation, and the model had certain application value. [ABSTRACT FROM AUTHOR]