İstatistiksel deneysel tasarım uygulanarak makine-süreç parametrelerinin iplik mukavemetine etkisinin tahmin edilmesi

İplik mukavemeti, ring eğirme proseslerinde kalite ve maliyet için önemli bir parametredir. Bu nedenle iplik mukavemetine etkisi olan parametrelerin belirlenmesi gerekir. Bu çalışmada iplik mukavemeti ile mukavemete etkisi incelenen makine-süreç parametreleri (iğ devri, iplik bükümü ve kopça numarası) arasındaki ilişki, regresyon tekniği kullanılarak tahmin edilmeye çalışılmıştır. Bu amaçla deneysel tasarım (merkezi birleşik tasarım) uygulanmış ve % 100 pamuk hammaddesi kullanılarak 15 farklı deney noktasında ring penye iplikleri üretilmiştir. Elde edilen test sonuçları için Design Expert yazılımı kullanılarak varyans analizi yapılmış ve makine-süreç parametrelerinin iplik mukavemetine etki dereceleri belirlenmiştir.

Determining the effects of machine process parameters on yarn strength by using statistical experimental design

Yarn strength is an important parameter for quality and cost in the ring spinning process. So, the parameters which have an important effect on yarn strength should be determined. In this study, the relationship between the yarn strength and the effect of the machine process parameters (spindle speed, yarn twist and number of traveller) on the strength is tried to predict by using regression technique. For this reason, experimental design (central composite design) is applied and by using 100 % raw material of cotton, ring combed yarn is produced at 15 different experiment points. For the test results, variance analysis is carried out by using Design Expert software and the effect degrees of the machine process parameters on yarn strength are predicted.

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  • 1.Box, G.E. and Draper, N.R. (1992), Empirical Model Building and Response Surfaces, John Wiley, USA.
  • 2.Etridge, D., and Zhu, R., (1996), Prediction of Rotor Spun Cotton Yarn Quality: A Comprasion of Neural Network and Regression Algoritms, Procedings of The Beltwide Cotton Conference, 2:1314-1317.
  • 3.Further, R. (1985), Strength and Elongation Testing of Single and Ply Yarns, The Textile Institute, Manchester, England.
  • 4.Karagüven, R., (1985). Lif Özellikleri İle İplik Özelliklerinin ilişkisi, Tekstil&Teknik, 12: 30-33.
  • 5.Montgomery, D.C. (1997), Design and Analysis of Experiments, John.Wiley, USA.
  • 6.Morris, P.J. Rennel, R.W. and Merkın, J.H. (1997a), Modelling of Yarn Geometry: Staple Fibre Yarns, Mathematical Engineering in Industry, 6, 209-220.
  • 7.Morris, P.J. Rennel, R.W. and Merkın, J.H. (1997b), Modelling of Yarn Geometry: Yarn Hairiness Mathematical Engineering in Industry, 6, 221-232.
  • 8.Myers, R.H. and Montgomery, D.C. (2002), Response Surface Methodology, John,Wiley,New York, USA.
  • 9.Onions, W.J. Pickering, J. and Stables, W. (1950), A Comparasion of Some Method of Measuring Yarn Irregularity, Journal of The Textile Institute, 41, 480-485.
  • 10.Subramaniam.V. and Mohamed, A.P. (1991), A Study of Double- Rove Yarn Hairiness in the Short Staple Spinning Sector, Journal of The Textile Institute, 82, 333-341.