Rolling friction in a 3D printed stringless pendulum

被引：1

作者：

Hanisch, C. ^{[1
]}

Ziese, M. ^{[1
]}

机构：

[1] Univ Leipzig, Fac Phys & Earth Sci, D-04103 Leipzig, Germany

来源：

EUROPEAN JOURNAL OF PHYSICS | 2021年 / 42卷 / 04期

关键词：

rolling friction; stringless pendulum; video analysis; HARMONIC-OSCILLATOR; MECHANISM; COULOMB; MOTION; FORCE;

D O I：

10.1088/1361-6404/abf220

中图分类号：

G40 [教育学];

学科分类号：

040101 ; 120403 ;

摘要：

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.

引用

页数：11

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