Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
권호 표지

Bundle Thickness Distribution on the Drum Surface in the Friction Spinning System

마찰 정방에서 드럼 표면상에서의 집속체 굵기 분포

  • Kim, Jong-S. (Department of Textile Engineering, Graduate School, Kyunghee University) ;
  • Lehmann, Beata (Institute for Textile and Clothing Technology, TU Dresden) ;
  • Huh, You (Faculty of Mechanical and Industrial System Engineering, Kyunghee University)
  • 김종성 (경희대학교 대학원 섬유공학과) ;
  • ;
  • 허유 (경희대학교 기계.산업시스템공학부)
  • Published : 2008.06.30
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Abstract

This study is dealing with the friction yarn formation process, where the fiber fleece is transformed into a bundle. The bundling procedure can be thought of as the fiber stapling and rolling on the friction drum, of which the dynamics can be described on the basis of the mass conservation. On the basis of the dynamic model obtained the bundle thickness on the friction drum was simulated according to the step and sinusoidal changes in the input fleece thickness. Results showed that the bundle radius response to the step change of the input fleece thickness can be approximately described with the characteristics of an integrating system with the amplitude limit. The sinusoidal change of the input fleece thickness yielded the bundle radius change that depended on the input change frequency. Under certain frequencies of the input fleece thickness change the yam take-up speed could amplify the output yam irregularity, which confirms the possible existence of the process resonance.

Keywords

References

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