Measurement and analysis of leather frictional forces / Su Zhenwei in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 84, N° 3 (05-06/2000)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 84, N° 3 (05-06/2000) . - p. 117-121 Titre : Measurement and analysis of leather frictional forces Type de document : texte imprimé Auteurs : Su Zhenwei, Auteur ; Hefin Rowlands, Auteur Année de publication : 2000 Article en page(s) : p. 117-121 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cuirs et peaux -- Propriétés mécaniques Evaluation Frottements (mécanique) Mesure Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : The friction property of leather is very important for the objective measurement of leather’s mechanical performance and subjective evaluation of leather handle. However, due to the visco-elastic and inhomogeneous property of leather and the change of physical properties of leather fibre with temperature, humidity and atmospheric pressure, the measurement and analysis of leather frictional forces are a difficult subject to study. As a preliminary and explorative research work, this paper conducts a literature review on friction theories. The frictional forces of leather samples under a constant load and a constant speed are investigated and measured by a computer system. After initial analysis, pattern recognition techniques using four types of clustering methods are used for the analysis of the relationship between leather surface quality and the measured results. Finally, further research work is suggested. Note de contenu : - Literature review on the relevant theories of friction - Measurement of the frictional force - Characteristics of the curves of leather frictional forces - Pattern recognition of the leather frictional forces - Table 1 : Subjective assessment results - Table 2 : Clustering results by four methods En ligne : https://drive.google.com/file/d/14evA1OY9YbSPbrPmLrY-D-BWnQ7cBgP_/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=41232 [article]

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A new model for leather quality testing / Su Zhenwei in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 84, N° 3 (05-06/2000)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 84, N° 3 (05-06/2000) . - p. 122-126 Titre : A new model for leather quality testing Type de document : texte imprimé Auteurs : Su Zhenwei, Auteur ; Daizhong Su, Auteur Année de publication : 2000 Article en page(s) : p. 122-126 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Contrôle non destructif Cuirs et peaux -- Propriétés mécaniques Essais de résilience Essais dynamiques Evaluation Qualité -- Contrôle Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : In this paper, the recent development of a leather quality test and three existing test models are reviewed, followed by the description of a new test model developed by the authors. The new model can be used to test leather bending and rigidity. Compared with existing test models, the significant advantages of the new model are that it is non-destructive and gives a high correlation with subjective evaluation results ofleather handle. In addition, it is convenient to combine this model with other test models into an integrated test environment to measure compression, testing, bending and surface friction properties of leather. It is simple and can be used on-line. Note de contenu : - A new test model - Case study and comparison : Experiment on leather handle - Experiment on leather’s physical-mechanical properties - Table 1 : Ranking of leather handle by subjective evaluation and test models - Table 2 : Correlation coefficient of the test models with physical properties test En ligne : https://drive.google.com/file/d/17n3XwPnr2fW_X_OqM442Dh6OQtpCX8VE/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=41233 [article]

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Objective evaluation of leather handle with artificial neural networks / Su Zhenwei in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 80, N° 4 (07-08/1996)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 80, N° 4 (07-08/1996) . - p. 106-109 Titre : Objective evaluation of leather handle with artificial neural networks Type de document : texte imprimé Auteurs : Su Zhenwei, Auteur ; Yin Guofu, Auteur ; Zhuo Zhaofei, Auteur Année de publication : 1996 Article en page(s) : p. 106-109 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : The three problems of the current methods for the objective evaluation of leather handle are analysed and as an alternative, a new approach with artificial neural networks is proposed. This case study, demonstrates that the new approach is capable of handling non-linear relationships among multiple parameters of leather physical properties, and satisfying the preferences of leather handle. More importantly, it could be used to objectively evaluate the handle types and different substances of leather. En ligne : https://drive.google.com/file/d/1lWGfq6cEH_C8jaMJmOjQbd40NjZ6EKKZ/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8115 [article]

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