CAJ | 학술논문

为获得负压大小、网格圈外表面摩擦因数对集聚区集聚效果的影响,建立集聚区流体动力学模型,分析了集聚区域内气流的流动状况,在其他条件相同的基础上,采用自编的MatLab编程模拟不同负压及相同负压不同摩擦因数下对应位置处单纤维在集聚区的运动轨迹.研究结果表明:负压大小和网格圈外表面摩擦因数均对集聚效果有影响,在二者取值较小时,集聚效果随着取值的增加相应有不同程度的改善,达到各自的最佳集聚状态后,取值增加使得集聚效果恶化.
위획득부압대소、망격권외표면마찰인수대집취구집취효과적영향,건립집취구류체동역학모형,분석료집취구역내기류적류동상황,재기타조건상동적기출상,채용자편적MatLab편정모의불동부압급상동부압불동마찰인수하대응위치처단섬유재집취구적운동궤적.연구결과표명:부압대소화망격권외표면마찰인수균대집취효과유영향,재이자취치교소시,집취효과수착취치적증가상응유불동정도적개선,체도각자적최가집취상태후,취치증가사득집취효과악화.
To get the effect of different negative pressures and friction factor of lattice apron at the outer surface on fiber compact in condensing zone of compact spinning with lattice apron, computational fluid dynamic model was established, and flowing state of airflow was characterized in convergence zone. Provided that other conditions were fixed, the trajectories of fibers at the counterpart positions were simulated by specially designed MatLab procedure when negative pressures were different and when negative pressures were the same but friction factors were different with the lattice apron at the outer surface. The results show that both the negative pressure and friction factor of lattice apron at the outer surface have great impact on the compact effect. Increasing these two values from the lower ends, the campact quality is improved. However, after reaching the optimal compact effect, further increasing the two values would lead to the opposite result.