Measurements of dynamic friction characteristics of the belt-pulley contact under dry conditions

• Autorzy: Kubas Krzysztof

Identyfikatory

DOI

10.14669/AM.VOL84.ART6

• Języki publikacji: EN

Abstrakty

EN

The paper presents the results of measurements of friction forces achieved by forcing slip between a poly-V 5pk belt and the pulley needed to formulate empirical models of dynamic friction. This kind of belt and pulley can be found in automotive industry to drive the alternator and coolant pump in cars. The forces were measured for several cases of assumed preload and two cases of wrap angle. The complicated stick and slip processes are simplified by assuming an average effective dynamic friction coefficient. The results show that the values of friction cannot be described by classic Euler formula. They not only depend on the velocity, but also noticed that can depend on sign of acceleration. Also, some results of the approximation are presented. It is proposed that the assumed norm will be minimised using the Nelder-Mead optimisation method. The measurements and the approximation let assume specified dynamic friction characteristics. The achieved results are applied to the model of a belt transmission. In the paper presented results of simulations of the model of belt transmission.

Słowa kluczowe

EN

belt-and-pulley transmission; dry friction; dynamic friction characteristics

• Wydawca: Wydawnictwo Naukowe Sieci Badawczej Łukasiewicz - Przemysłowego Instytutu Motoryzacji
• Czasopismo: Archiwum Motoryzacji
• Rocznik: 2019
• Tom: Vol. 84, nr 2
• Strony: 71--90
• Opis fizyczny: Bibliogr. 16 poz., rys., tab., wykr., wz.

Twórcy

autor

Kubas Krzysztof

• Department of Mechanics, Faculty of Mechanical Engineering and Computer Science, University of Bielsko-Biała, ul. Willowa 2, 43-309 Bielsko-Biała, Poland

Bibliografia

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• [14] Manin L., Liang X., Lorenzon C.: Power losses prediction in poly-v belt transmissions: application to front engine accessory drives, Proceedings of International Gear Conference, Lyon, France, 2014, 1162-1171, DOI:10.1533/9781782421955.1162
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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).