Rolling friction in a 3D printed stringless pendulum

Autor:	C. Hanisch, Michael Ziese
Rok vydání:	2021
Předmět:	Physics::Fluid Dynamics Physics 3d printed Rolling resistance Pendulum General Physics and Astronomy Mechanical engineering Physics::Classical Physics
Zdroj:	European Journal of Physics. 42:045004
ISSN:	1361-6404 0143-0807
DOI:	10.1088/1361-6404/abf220
Popis:	The motion of a billiard ball rolling on a 3D printed stringless pendulum was studied by video analysis. This allows for the measurement of the eigenfrequency as well as the coefficients of viscous drag and rolling friction. The stringless pendulum consisted of two circle sectors with variable distance, such that friction coefficients could be determined as a function of rolling radius. Rolling resistance decreases with increasing rolling radius, but does not follow a simple power law; instead the data suggest an exponential dependence.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e573fa507086a2d5f3a70aed4ba25780 https://doi.org/10.1088/1361-6404/abf220 Zobrazit plný text záznamu