Development Testing of Epicyclic Gearing

[+] Author and Article Information
D. E. Yates, G. J. Lack

NEI Allen Ltd.—Allen Gears, Worcestershire, United Kingdom

J. Eng. Gas Turbines Power 114(2), 328-333 (Apr 01, 1992) (6 pages) doi:10.1115/1.2906592 History: Received March 04, 1991; Online April 24, 2008


The increasing use of epicyclics for high-powered marine and industrial applications has resulted in world-wide interest in this type of gearing. The coaxial input and output, reduced losses, small size, and low weight are some of the advantages. The use of a full-size development test rig using the power circulation method has been fundamental to the evolution of double helical, flexible annulus epicyclics, and has led to a detailed understanding of their operating principles. This understanding has been essential for the analytical modeling and the development of innovative design concepts. The paper outlines some of the work that has been carried out in the test rig at NEI Allen Ltd.—Allen Gears. The method of measuring the dynamic load sharing is discussed and some of the results that have led to improvements in the design and manufacturing methods are given. Test rig work continues currently with the development of low-noise gears and vibration isolation.

Copyright © 1992 by The American Society of Mechanical Engineers
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