Investigation of Twist Waves Distribution along Structurally Nonuniform Yarn
Sh. ShukhratovFerghana state university , Republic of UzbekistanRimvydas MilašiusKaunas University of Technology , LithuaniaKabuljon GafurovJizzakh Polytechnic Institute , Republic of UzbekistanJ K GafurovTashkent institute of textile and light industry , Republic of Uzbekistan
ABI
Аннотация
Abstract This paper presents the features of yarn structure formation on spinning machine, i.e. yarn twist change when winding. It was considered that the twist distribution was one of the reasons for its decrease along the formed yarn. In this paper, based on analysis of changes in thickness and twist due to axial deformation, we consider a yarn moving at constant speed. Moving dynamics of yarn are studied here by using Euler variables. The correspondences of forward and reverse twist waves’ distribution speeds on presented frequency at various vibration forms are obtained. The parameters of Doppler effect for the waves distributed along the yarn are determined.
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