This paper presents a mathematical model of the weft yarn filling insertion process in rapier looms. A finite length segment of yarn is spatially discretized. Each element can interact only with the nearest neighbors by a viscoelastic interaction. The elastic and damping constants have been estimated by using experimental data obtained with different yarns. The resulting model has lumped parameters and it is completely described by a set of ordinary differential equations. The model provides the time and spatial profile of the tension in the considered yarn segment as a response to external forces applied to the weft yarn by the rapiers and the weft brake. Also, interactions with guide-eyes and piezoelectric feelers have been considered in the model. The simulation results confirm that the proposed model can be a useful tool in predicting weft yarn breakage and in design of tension control systems by weft braking action. © 2006 IEEE.

(2006). A numerical model for the weft yarn filling insertion process in rapier looms [conference presentation - intervento a convegno]. Retrieved from http://hdl.handle.net/10446/25179

A numerical model for the weft yarn filling insertion process in rapier looms

Previdi, Fabio;
2006-01-01

Abstract

This paper presents a mathematical model of the weft yarn filling insertion process in rapier looms. A finite length segment of yarn is spatially discretized. Each element can interact only with the nearest neighbors by a viscoelastic interaction. The elastic and damping constants have been estimated by using experimental data obtained with different yarns. The resulting model has lumped parameters and it is completely described by a set of ordinary differential equations. The model provides the time and spatial profile of the tension in the considered yarn segment as a response to external forces applied to the weft yarn by the rapiers and the weft brake. Also, interactions with guide-eyes and piezoelectric feelers have been considered in the model. The simulation results confirm that the proposed model can be a useful tool in predicting weft yarn breakage and in design of tension control systems by weft braking action. © 2006 IEEE.
2006
Previdi, Fabio; Savaresi, Sergio Matteo; Volpi, Corrado
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10446/25179
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