Starting from a previous model for the shift mechanics of rubber belt variators, this lecture elaborates practical design formulas for the torque and the axial thrust making use of the very close resemblance of the belt path to a linear spiral of Archimedes along a large part of the arc of contact. In addition, as an alternative to the modern calculus tools, it is shown how the drive variables can be equally calculated applying some propositions of Archimedes' classical treatise περι ‘ελικων (On Spirals).
Sorge, F. (2010). V-Belt Winding along Archimedean Spirals During the Variator Speed Ratio Shift. In The Genius of Archimedes (pp.133-147). Springer [10.1007/978-90-481-9091-1_9].
V-Belt Winding along Archimedean Spirals During the Variator Speed Ratio Shift
SORGE, Francesco
2010-01-01
Abstract
Starting from a previous model for the shift mechanics of rubber belt variators, this lecture elaborates practical design formulas for the torque and the axial thrust making use of the very close resemblance of the belt path to a linear spiral of Archimedes along a large part of the arc of contact. In addition, as an alternative to the modern calculus tools, it is shown how the drive variables can be equally calculated applying some propositions of Archimedes' classical treatise περι ‘ελικων (On Spirals).
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