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Membership function for fabric weight. 

Membership function for fabric weight. 

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The aim of this paper was to predict the needle penetration force in denim fabrics based on sewing parameters by using the fuzzy logic (FL) model. Moreover, the performance of fuzzy logic model is compared with that of the artificial neural network (ANN) model. The needle penetration force was measured on the Instron tensile tester. In order to pla...

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... Larger sample sizes produce more accurate findings, and the size of the dataset has a substantial influence on how well ANN models predict the results. [35][36][37] ANN systems have demonstrated successful application in various applications within the textile industry. These applications include the classification of errors in textile operations, estimates of yarn quality parameters, classification of knitted and woven fabrics, estimation of fabric perception features, prediction of clothing comfort, determination of air permeability in knitted and woven fabrics, as well as estimation of fabric drape and mechanical properties such as static tear strength. ...
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The present research compares a machine learning model with a statistical model, with specific emphasis on artificial neural networks and multiple linear regression models. The aim of this study is to forecast the thermal transmittance of a plain-woven cotton fabric using input data such as thread density measured in ends per inch, picks per inch, and fabric thickness. The artificial neural network is built using a network with feed-forward backpropagation, and the MATLAB software’s training function trainlm is used to modify its weight and basic values based on Levenberg–Marquardt optimization techniques. The sigmoid transfer function is used to set the layer output and measure network performance in terms of the root mean squared error, mean absolute error percentage, and coefficient of determination which were determined. For the artificial neural network prediction model, the root mean squared error and mean absolute error percentage were 1.05 and 3.132%, respectively, while the coefficient of determination was 0.9307. In contrast, the multiple linear regression prediction model had root mean squared error and mean absolute error percentage values of 2.98 and 8.97%, respectively, along with a coefficient of determination of 0.4727. The results reveal that the artificial neural network model outperforms the multiple linear regression model, showing superior accuracy and robustness in capturing the intricate interactions between important fabric parameters (ends per inch, picks per inch, and thickness) and thermal transmittance values. This research emphasizes the efficiency of artificial neural network modeling as a superior tool for forecasting thermal transmittance in textile applications rather than employing the time-consuming trial-and-error process for delivering significant insights for material engineering and energy-efficient design.
... When the studies on the use of the ANN method in ready-made clothing are examined It has been seen that the studies are related to predicting the fabric performance and fabric end use [11,12], design of smart sewing machines, and smart sewing environments [13][14][15], system identification and controller synthesis for sewing machine [16], fabric stitching inspection method proposal [17], sewing fault detection and classification [18], quality control of seams [19], control of sewing parameters [20], modelling and prediction of needle penetration force [21,22], predicting of sewing thread consumption [23], predicting of sewing performance [24][25][26], predicting of strength loss in threads [27], predicting of seam strength [28], prediction and rating of seam pucker [29,30], calculation of optimum fabric lays quantities [31], forecasting of cutting time [32], use of artificial intelligence in cutting and sewing [33]. ...
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... Some of them were accomplished in different fields of textile science and engineering. [30][31][32][33][34][35][36][37][38][39][40] Among modeling research studies, a semi-experimental fuzzy logic model has been implemented to predict acrylic cut-pile carpet thickness-loss under compression for carpet pile density, pile height, and pile yarn count, recently. 41 In this model, experimental data have been used for both construction of model knowledge base and model precision assessment. ...
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... The subject of needle penetration force measurement has been studied by various researchers since the 1960s. These studies can be classified into three categories: the development of an instrument to measure penetration forces (Leeming and Munden, 1978;Carvalho et al., 2009;Ujevic et al., 2008), the investigation of parameters that influence the penetration forces (Gurarda and Meric, 2005), and prediction of penetration forces based on mathematical models (Lomov, 1998;Haghighat et al., 2014). ...
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... A Mamdani max-min inference approach and the center of gravity defuzzification method have been applied in this research. The following functions are used in order to make the fuzzification of the used factors: 16,19,[29][30][31][32][33] Weave type ði1Þ ¼ To develop the fuzzy prediction model three fabric variables, weave type, weave density, and number of filaments, were used as input variables and fabric air permeability as an output variable. These fabric inputs were selected as they are the most significant factors on fabric air permeability. ...
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... Modeling based on fuzzy expert systems has been used in the field of dyeing, weaving, knitting, seam strength prediction, laser engraving, etc. 4,35,[38][39][40][41][42][43][44] Nevertheless, no significant work has been reported to demonstrate fuzzybased modeling in the field of industrial garment washing, especially in the case of bleach washing. Since washing is crucial in today's apparel world and bleach wash is the most challenging type of wash whose process parameters are hard to control, they demand extra precautions to maintain the quality of the final product. ...
... 38 These rules use an if-then statement to connect the input and output variables [24], [26], [28]. For example, for the inputs X and Y, and output Z those have the linguistic variables, namely low and medium for X and Y respectively, and medium for Z then the fuzzy expert rules 39,47 can be constructed as the following expression: ...
... If X is low, and Y is medium, then Z is medium. Between the two types of fuzzy rule base named Mamdani and Sugeno, 39,48,49 Mamdani rules have been used in this particular study. ...
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... As a result, these models provide noisy data with a lower level of precision [48][49][50]. In this regard, soft modeling methods based on intelligent techniques like Artificial Neuro Fuzzy Inference System (ANFIS) or ANN can substantially address the issue with reasonable accuracy [51]. ...
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... Predicting needle penetration force (NPF) in the sewing process can invade the needle breakage and consequently promote the process efficiency and product quality. Related works have been reported by Haghighat et al. comparatively using ANN and multiple linear regression (MLR) [55], as well as fuzzy logic and ANN [56]. The considered input variables are composed of the No. of fabric layers, needle size, weave pattern, and fabric weight in the comparison of In addition to the NPF, thread tension is also mentioned above that the affects the sewability in the sewing process. ...
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... A fuzzy expert system is an artificial intelligence derived from fuzzy set theory established by Zadeh in 1965 [20,21,24]. The basic components of a fuzzy expert system are a fuzzifier, a fuzzy rule base, an inference engine and a defuzzifier as depicted in Figure 2. ...
... This value is called a membership value. Among various forms of membership functions, the triangle membership function is the simplest and most frequently used due to its accuracy [20,24]. ...
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... 29 These rules relate the input and output variables and are operated by if-then statement. 30,32,34 For instance, for two inputs A and B, and one output C having linguistic variables of low and medium for A and B respectively and medium for C then the development of fuzzy inference rules 30,32,34,36 can be presented as follows: ...
... 38 The defuzzification interface converts the fuzzy output into precise crisp numeric values by combining the conclusions made by the decision making logic. 36,39 There are several methods of defuzzification interface, such as centroid, center of sum, mean of maxima and left-right maxima. 40 However, among these the most used defuzzification method is the center of gravity (centroid) defuzzification method, as this operator assures a linear interpolation of the output between the rules. ...
... The triangular-shaped membership functions have shown more accuracy in this aspect. Mamdani maxmin inference mechanism and the center of gravity defuzzification method 33,35,36 have been applied in this research work. ...
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The main purpose of this study is to predict and develop a model for forecasting the Seam Strength (SS) of denim garments with respect to the thread linear density (tex) and Stitches Per Inch (SPI) by using a Fuzzy Logic Expert System (FLES). The seam strength is an important factor for the serviceability of any garments. As seams bound the fabric pieces together in a garment, the seams must have sufficient strength to execute this property even in the unexpected severe conditions where the garments are subjected to loads or any additional internal or external forces. Sewing thread linear density and number of stitches in a unit length of the seam are the two of the most important factors that affect the seam strength of any garments. But the relationship among these two specific variables and the seam strength is complex and non-linear. As a result, a fuzzy logic based model has been developed to demonstrate the relationship among these parameters and the developed model has been validated by the experimental trial. The coefficient of determination ( R ² ) was found to be 0.98. The mean relative error also lies withing acceptable limit. The results have suggested a very good performance of the model in the case of the prediction of the seam strength of the denim garments.