The Vibrational Properties of Woven Fabrics Based upon In-plane Shear Deformation

摘要

The effect of basic fabric parameters, such as weave density and yarn twist, on the shear vibration of a fabric is studied theoretically and experimentally. It is shown that the proposed theoretical damping ratio, based on inter-thread friction between warp and weft threads at the crossover points of threads, is valid, and the experimental results are explained qualitatively by the theory. The damping ratio of shear vibration increases with the weave density in the fabric; however, the effect of yarn twist is larger. There exists an optimum value for both weave density and yarn twist to give the smallest value of the damping ratio, k, at which the shear vibration continues for the longest time.