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1 2002

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Behaviour of yarn interacted with high-speed object under sideways-constraint

Vu Hung D., Degrieck J., Van Langenhove L., Kiekens P.

Autex Research Journal

2002

Vol. 2, no. 1

46--56

This paper presents an investigation of the dynamic behaviour of a yarn in an interaction with a high-speed object, for the lower warp sheet during the weaving process. The yarn movement on the object can be described in four stages from non-contact, contact, drop-off and withdrawal. A model is developed to predict this interaction, taking into account several factors such as yarn length, yarn tension, object speed, object orientation and object profile. A comparison of theoretical predictions and experimental measurements for different yarns indicates a good agreement. The theoretical model can be used to optimise the object profile in order to reduce the interactive yarn tension and to avoid any yarn damage.