An analytical model of dynamic sliding friction during impact

Kazuo Arakawa

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7 Citations (Scopus)

Abstract

Dynamic sliding friction was studied based on the angular velocity of a golf ball during an oblique impact. This study used the analytical model proposed for the dynamic sliding friction on lubricated and non-lubricated inclines. The contact area A and sliding velocity u of the ball during impact were used to describe the dynamic friction force Fd = λAu, where λ is a parameter related to the wear of the contact area. A comparison with experimental results revealed that the model agreed well with the observed changes in the angular velocity during impact, and λAu is qualitatively equivalent to the empirical relationship, μN + μη′dA/dt, given by the product between the frictional coefficient μ and the contact force N, and the additional term related to factor η′ for the surface condition and the time derivative of A.

Original languageEnglish
Article number40102
JournalScientific reports
Volume7
DOIs
Publication statusPublished - Jan 5 2017

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All Science Journal Classification (ASJC) codes

  • General

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