Search results for "triangular tooth gearing"

showing 2 items of 2 documents

Coupling Mechanics of Antikythera Gearwheels

2012

This paper discusses the gear coupling mechanics of the ancient Antikythera mechanism, among whose distinctive characteristics was the triangular shaping of the teeth. The engagement of the tooth pairs is analyzed in detail, estimating the temporal variation of the speed ratio due to the back and forth shifting of the relative instant center. The admissibility of the theoretical contact points is carefully checked, and the magnitude of the successive tooth collisions is calculated together with the energy losses arising from the particular nature of the coupling. Some interesting results are that only one tooth pair turns out to be active at each time instant and the real path may belong on…

CouplingEngineeringClassical mechanicsMechanics of Materialsbusiness.industryMechanical Engineeringtriangular tooth gearing history of mechanicsMechanicsDissipationbusinessComputer Graphics and Computer-Aided DesignSettore ING-IND/13 - Meccanica Applicata Alle MacchineComputer Science Applications
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A Note on the Mechanics of Ancient Gear Systems

2011

This paper deals with the mechanical behavior of the gearwheels of the antiquity, which were generally characterized by triangular shaping of the teeth. The engagement of the conjugate profiles is analyzed in detail, calculating the temporal variation of the speed ratio due to the back and forth shifting of the relative instant center. The admissibility of the points of the theoretical contact path is carefully checked, estimating also the magnitude of the successive tooth collisions and ascertaining the energy losses arising from the particular nature of the coupling. Some very interesting results are that only one couple of teeth turns out to be active at each time instant and that the re…

triangular tooth gearing history of mechanicsSettore ING-IND/13 - Meccanica Applicata Alle Macchine
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