Optimization of the Resilience of Tunisian Hand-made Carpet

ABSTRACT

This paper investigates and reports the effect of construction parameters (yarn and fabric parameters) on the main performances of Tunisian hand-made carpet in order to enhance their resilience and overall quality. Thickness loss of carpet is chosen as representative compression parameters under dynamic loading. Also permanent deformation, elasticity of pile and recovery speed was considered as representative of the appearance characteristics under static loading. Nine woolen hand-knotted carpet samples (symmetric knot) with different structural specifications were produced. By fractional factorial Taguchi type 3^k−1 design, the responses were fitted to predictive models using a multiple linear regression method. The models were tested by variance analysis and validated by correlation between measured and predicted values. We determined the optimum settings of hand-made carpet construction parameters enhancing its resilience by contour plotting method.

摘要

为了提高突尼斯手工地毯的回弹性和综合质量, 研究并报道了结构参数 (纱线和织物参数) 对其主要性能的影响. 选择地毯的厚度损失作为动态载荷下的代表性压缩参数. 在静载荷作用下, 桩的永久变形, 桩身弹性和恢复速度是桩的外观特征的代表. 制作了9件不同结构规格的羊毛手工打结地毯样品 (对称结). 采用分数阶析因田口3k-1型设计, 用多元线性回归方法对预测模型进行拟合. 通过方差分析对模型进行检验, 并通过实测值与预测值的相关性进行验证. 通过等高线绘制法确定了提高地毯回弹性的手工地毯结构参数的最佳设置.

KEYWORDS:

• Hand-made carpet
• compression
• contour plots
• optimization
• resilience