Optimal Design of Compact Spur Gear Reductions

[+] Author and Article Information
M. Savage, S. B. Lattime, J. A. Kimmel

The University of Akron, Akron, OH 44325

H. H. Coe

NASA Lewis Research Center, Cleveland, OH 44135

J. Mech. Des 116(3), 690-696 (Sep 01, 1994) (7 pages) doi:10.1115/1.2919437 History: Received November 01, 1991; Online June 02, 2008


The optimal design of compact spur gear reductions includes the selection of bearing and shaft proportions in addition to the gear mesh parameters. Designs for single mesh spur gear reductions are based on optimization of system life, system volume, and system weight including gears, support shafts, and the four bearings. The overall optimization allows component properties to interact, yielding the best composite design. A modified feasible directions search algorithm directs the optimization through a continuous design space. Interpolated polynomials expand the discrete bearing properties and proportions into continuous variables for optimization. After finding the continuous optimum, the designer can analyze near optimal designs for comparison and selection. Design examples show the influence of the bearings on the optimal configurations.

Copyright © 1994 by The American Society of Mechanical Engineers
Topics: Design , Gears , Spur gears
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