A Study on Warp Tension of a Tricot Machine:Part 3 : An Example of the Linearization of the Tension Control System

概要

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To determine the conditions which are needed to linearize the system and to calculate the yarn tension in the tension control system having tension springs, the warp tension in a tricot machine with a positive warp let-off device was measured under various knitting conditions. By analyzing the experimental results theoretically from the viewpoint of linear viscoelastic theory, the following principal conclusions were obtained : <BR>1. For the practical calculation of the tension of yarn on a textile machine as the first approximation, two mechanical models, one corresponding to the vibrational component of the exciting force and the other to the statical component, should be set up.A model corresponding to the vibrational force can be fitted with a Voigt model.<BR>For the practical calculation of yarn tension, it is useful to use various model parameters reduced from the dynamic experiment of yarn rheoloically.<BR>2. Use of yarn having the small modules of the dynamic elasticity will make greater the ratio of the increase in the tension of the yarn to the increase in the speed of machine.
社団法人日本繊維機械学会の論文