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Vollständiger Titel (Bulgarisch)
Textile and Garment Magazine
Untertitel
списание Текстил и облекло
Imprint
Textile and Garment Magazine
Verlag
SEUTGL
ISSN
1310-912X (Gedruckte Zeitschrift)
2603-302X (Online-Zeitschrift)
Nummer des Bandes
04
Nummer der Ausgabe
01
Andere Beschreibung der Ausgabe
papers
Erscheinungsdatum der Ausgabe (YYYY/MM/DD)
2025/04/30
Vollständiger Titel (Englisch)
STUDYING THE TREND OF FRICTION COEFFICIENTS IN RELATION TO NORMAL PRESSURE FOR FABRICS MADE FROM WOOL
Untertitel
ИЗСЛЕДВАНЕ ТЕНДЕНЦИЯТА НА КОЕФИЦИЕНТИТЕ НА ТРИЕНЕ ВЪВ ВРЪЗКА С НОРМАЛНИЯ НАТИСК ЗА ТЪКАНИ, ИЗРАБОТЕНИ ОТ ВЪЛНА
Von (Autor)
Zugehörigkeit
Southwestern University “N. Rilski”, Faculty of Engineering, Blagoevgrad, Bulgaria, Associated Professor
Zugehörigkeit
Southwestern University “N. Rilski”, Faculty of Engineering, Blagoevgrad, Bulgaria, doctoral student
Number of Pages
8
Erste Seite
111
Letzte Seite
118
Sprache des Textes
Bulgarisch
Erscheinungsdatum
2025/04/30
Abstract/Hauptbeschreibung (Englisch)
Abstract: The article studies the coefficients of friction during sliding and at rest with a tendency to slide of wool-type fabrics - with different wool content, with different weave and with different thickness of the warp and weft threads. The aim of the study is to establish the trend of the graph of the coefficients of friction in relation to the pressure and in relation to the direction of testing - warp by warp and warp by weft for the two layers of frictional fabrics. The study shows that a logarithmic function - close to the linear or exponential - close to the linear function ideally describes the friction of wool-type fabrics. Out of a total of 16 graphs, 15 are ideally described by a logarithmic function, and 1 - by an exponential one, which can be summarized that the graphical dependence of the coefficients of friction for wool-type fabrics is logarithmic, as with increasing pressure, the coefficient of friction also increases. Twelve out of sixteen graphs are logarithmic with a high confidence coefficient R2 > 0.99. The values of the confidence coefficient R2, which are visible under the graphical equations in graphs Nos. 1 ÷ 16, characterize the approximation as a model with very good and ideal quality, with a confidence rate above 0.85. In the experimental study, results were obtained for friction coefficients (at rest and during sliding) close to 1 and even greater than 1. Keywords: Wool type fabrics, friction, coefficients of friction