On-line measurement of fabric bending behavior Part III: Dynamic considerations and experimental implementation

A nonlinear, dynamic fabric bending model is introduced to study the dynamic effects on loop formation and measured characteristic parameters. In order to verify the theoretical results and test the measurement principle, an experimental system based on the principles of loops 3 and 4 is developed. The influence of fabric linear speed and movement direction on the measured values is discussed. Discrepancies between theoretical and experimental observations indicate that a full understanding of the effects of the fabric bending rate on bending properties is necessary to accurately model bending behavior when a high bending rate is involved. The work demonstrates a strong correlation between the on-line and off-line measured results.