Simulation and analysis of trajectory of fibers in a four-roller compact spinning system

In order to simulate the trajectory of fibers in four-roller compact spinning, the critical components of four-roller compact spinning were measured to build a physical model. Fluent16 which can calculate the flow field was used to acquire the airflow distribution in the aggregation region. The dynamic model of fiber was established by infinitesimal method, and MatLab was used to edit the dynamic equation to simulate the trajectory of a single fiber under different conditions. The results show that the fibers at the entrance of aggregation region are compacted and output to the center. The track of single fiber is regular, but the displacement of the fiber in the intermediate micro-element period is random. The fibers hold together under the action of airflow force and friction. With the increase of the negative pressure value, the fibers hold together more tightly; but when the negative pressure is too high, the internal and external transfer of fibers is weakened, thus weakening the cohesive force among the fibers. Copyright No content may be reproduced or abridged without authorization.