Comparative study of linear and quadratic model equations for prediction and evaluation of surface roughness of a plain-woven fabric
Research Journal of Textile and Apparel
ISSN: 1560-6074
Article publication date: 22 February 2022
Issue publication date: 5 May 2023
Abstract
Purpose
Modeling helps to determine how structural parameters of fabric affect the surface of a fabric and also identify the way they influence fabric properties. Moreover, it helps to estimate and evaluate without the complexity and time-consuming experimental procedures. The purpose of this study is to develop and select the best regression model equations for the prediction and evaluation of surface roughness of plain-woven fabrics.
Design/methodology/approach
In this study, a linear and quadratic regression model was developed for the prediction and evaluation of surface roughness of plain-woven fabrics, and the capability in accuracy and reliability of the two-model equation was determined by the root mean square error (RMSE). The Design-Expert AE11 software was used for developing the two model equations and analysis of variance “ANOVA.” The count and density were used for developing linear model equation one “SMD1” as well as for quadratic model equation two “SMD2.”
Findings
From results and findings, the effects of count and density and their interactions on the roughness of plain-woven fabric were found statistically significant for both linear and quadratic models at a confidence interval of 95%. The count has a positive correlation with surface roughness, while density has a negative correlation. The correlations revealed that models were strongly correlated at a confidence interval of 95% with adjusted R² of 0.8483 and R² of 0.9079, respectively. The RMSE values of the quadratic model equation and linear model equation were 0.1596 and 0.0747, respectively.
Originality/value
Thus, the quadratic model equation has better capability accuracy and reliability in predictions and evaluations of surface roughness than a linear model. These models can be used to select a suitable fabric for various end applications, and it was also used for tests and predicts surface roughness of plain-woven fabrics. The regression model helps to reduce the gap between the subjective and objective surface roughness measurement methods.
Keywords
Acknowledgements
The author is extremely grateful to my family for their love, prayers, caring and sacrifices in preparing me for my future. I wouldn’t be here today if you weren’t MOM (Itukoo). Thank you for always being there as I continue to navigate these early years of my life. I’m everything I’m because you loved me, Aster Sileshi (MOM).
Citation
Beyene, K.A. (2023), "Comparative study of linear and quadratic model equations for prediction and evaluation of surface roughness of a plain-woven fabric", Research Journal of Textile and Apparel, Vol. 27 No. 2, pp. 281-298. https://doi.org/10.1108/RJTA-08-2021-0107
Publisher
:Emerald Publishing Limited
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