Numerical analysis of the dynamic thread stretching process




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Wydawnictwo Politechniki Łódzkiej
Lodz University of Technology Press


The subject of the paper is the analysis of the dynamic thread stretching process under extreme conditions of the excitation speed with the physical phenomena described in terms of rheological models. The analysis was carried out using three basic models relating to viscoelastic bodies, i.e. the Maxwell, Kelvin-Voigt and Standard 2 models. The relationships between the reaction forces of the stretched threads and the input parameters of the process were included both in an analytical form and in a numerical model. The theoretical analysis was related to the experimental tests carried out on polyester threads with a linear mass of 84, 110 and 334 dtex, assuming the tensile speed ranging from 0.6 to 1.5 m / s. The experiment was carried out on a custom designed test stand. In the conclusion of the obtained research, it can be stated that the most appropriate model for the description of the analysed thread stretching process is the Standard model 2 and it should be emphasized that the traditional analysis based on analytical relationships coincides with the results of numerical analysis. This proves the correctness of the adopted numerical model with specific boundary conditions.


Słowa kluczowe

thread stretching dynamics, rheological models, equation of state, numerical analysis, dynamika rozciągania nici, modele reologiczne, równania stanu, analiza numeryczna


Prążyńska A., Mikołajczyk Z., Kuchar M., Numerical analysis of the dynamic thread stretching process. W: AUTEX 2022 : 21st World Textile Conference AUTEX 2022 - AUTEX Conference Proceedings, Lodz University of Technology Press, Lodz 2022, s. 401-404, ISBN 978-83- 66741-75-1, doi: 10.34658/9788366741751.83.