지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
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Fibers' length distributions were shown to affect their linear density. They depended on processing conditions such as draft roller adjustment and draft ratio. Random variational signals were applied as input bundles and output linear densities were simulated at various draft roller adjustments and draft ratios using the dynamic model equipped with various velocity variance models for fiber length distribution. Draft roller adjustment and draft ratio led to process resonance and increased irregularity in the output linear density. Increasing draft roller adjustment reduced linear density in CV%, while process resonance occurred at draft roller adjustments of 1.1-1.25 times of the maximal fiber length. Length distributed bundles had lower fundamental frequencies (longer fundamental wavelengths) than uniform fibers. High draft ratios induced greater irregularities in the output bundles, with process resonance occurring at draft ratios of 20-30. Draft ratios above 30 led to output linear density including wide ranging regularly oscillatory components of irregularity that corresponded to integer multiples of the fundamental frequency.
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참고문헌 (10)
참고문헌 신청
H. Balasubramanian / 1968 / Studies in Modern Yarn Production / Textile Institute :169~180
B. Dutta / 1973 / The Dynamic Response of Drafting Tension to Sinusoidal Variations in Draft Ratio under Conditions of Sliver Elasticity in Short-staple Drafting / J Text Inst 64:534~542
G. Mandl / 1977 / The Influence of Cotton- Spinning Machinery on the Random Irregularity of Sliver and Yarns - Part I, II, III / J Text Inst 68:387~406
Y. Huh / 2004 / Modeling the dynamic behavior of the fiber bundle in a roll-drafting process / TEXTILE RESEARCH JOURNAL 74(10):872~878
허유 / 2006 / 인발 집속유체의 정상유동 특성 / 대한기계학회논문집 B 30(7):612~621
B. Dutta / 1973 / The Dynamic Response of Drafting Tension to Sinusoidal Variations in Draft Ratio under Conditions of Sliver Elasticity in Short-staple Drafting / J Text Inst 64:534~542
G. Mandl / 1977 / The Influence of Cotton- Spinning Machinery on the Random Irregularity of Sliver and Yarns - Part I, II, III / J Text Inst 68:387~406
Y. Huh / 2004 / Modeling the dynamic behavior of the fiber bundle in a roll-drafting process / TEXTILE RESEARCH JOURNAL 74(10):872~878
허유 / 2006 / 인발 집속유체의 정상유동 특성 / 대한기계학회논문집 B 30(7):612~621
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