The Mechanical Efficiency of Epicyclic Gear Trains

[+] Author and Article Information
E. Pennestrì

Dept. of Mechanics, University of Calabria, 87030 Arcavacata di Rende, Italy

F. Freudenstein

Columbia University, New York, N.Y. 10027

J. Mech. Des 115(3), 645-651 (Sep 01, 1993) (7 pages) doi:10.1115/1.2919239 History: Received July 01, 1991; Online June 02, 2008


The analysis of mechanical efficiency constitutes an important phase in the design analysis of gear drives. The objective of this investigation has been the development of a general algorithm for the determination of efficiency in split-power spur-gear trains. The model includes meshing losses only; for a more realistic estimation other sources can be considered separately. The systematic nature of the formulation, based on the dual correspondence between the kinematic structure of the gear drive and a labelled graph, allows a ready coding of the efficiency analysis in a general computer program. The numerical results are in line with those given by other authors using different methodologies.

Copyright © 1993 by The American Society of Mechanical Engineers
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