Analytical model of longitudinal tire traction in snow

An analytical model to estimate longitudinal traction of a tire in snow was developed and verified to have good predictability in comparison with measurements. Snow traction of a tire is composed of four kinds of forces in this model: braking force attributable to snow compression, shear force of sn...

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Bibliographic Details
Published inJournal of terramechanics Vol. 40; no. 1; pp. 63 - 82
Main Author Nakajima, Yukio
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 2003
Elsevier
Subjects
Applied sciences
Exact sciences and technology
Ground, air and sea transportation, marine construction
Road transportation and traffic
Snow traction
Tire
Snow traction
Tire
Braking
Snow
Slip
Rolling contact
Shear force
Forecast model
Traction
Motor industry
Tyre
Road transportation
Vacuum
Friction
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Summary:An analytical model to estimate longitudinal traction of a tire in snow was developed and verified to have good predictability in comparison with measurements. Snow traction of a tire is composed of four kinds of forces in this model: braking force attributable to snow compression, shear force of snow in void (space between tread blocks), frictional force, and digging force (edge effect generated by sipes and blocks). The mechanical characteristics of snow were considered in the prediction of braking force and shear force, but were not considered in the prediction of other forces. The contribution of shear force of snow in void and the frictional force was large in static traction (traction just before a tire slips). On the other hand, the contributions of digging force and frictional force were large in situations involving high slip ratios.
ISSN:0022-4898
1879-1204
DOI:10.1016/j.jterra.2003.09.003