Where you are: Home pageYear 2006Issue (56) → Article:
AAA     ENG | POL

A Discrete Probability Model of Forces in Yarns Transported Through the Drawing Zone

Research and development

Authors:

Download... PDF
Full text

Abstract:

A simulation of forces acting in model-yarns transported through the drawing zone was carried out. The model is characterised by two random variables: the length of a yarn segment (link) and the yarn’s drawing rigidity. The drawing zone consists of two pairs of rolls working with different tangential velocities. Computer simulations carried out indicate the causes of the stochastic character of tensions, which is connected with the irregularity of the yarn’s mechanical properties. The simulations also determine the ranges of changes to the force dispersion in dependence on the length of the drawing zone, the coefficients of variation of the drawing rigidity, and the lengths of the component yarn segments which have various mechanical characteristics.

Tags:

drawing zone, rigidity, elongation, tension, modelling, simulation, yarn, probability model, coefficient of variation

Published in issue no 2 (56) / 2006, pages 71–75.

CONTACT:

FIBRES & TEXTILES
in Eastern Europe
ul. Skłodowskiej-Curie 19/27,
90-570 Łódź, Poland
tel. (48-42) 638-03-14
e-mail: infor@ibwch.lodz.pl
ftee@ibwch.lukasiewicz.gov.pl
Events:

EDITORIAL OFFICE
FIBRES & TEXTILES in Eastern Europe 19/27 M. Skłodowskiej-Curie Str., 90-570 Łódź, Poland e-mail: infor@lit.lukasiewicz.gov.pl; ftee@lit.lukasiewicz.gov.pl

EDITORIAL DEPARTMENT
Editor-in-Chief Dariusz Wawro, Head of Editorial Office Janusz Kazimierczak, Text Editor Geoffrey Large, Assistant Editor Anna WahlProduction Łukasiewicz-ŁIT

facebook