Computerized Design and Generation of Low-Noise Helical Gears with Modified Surface Topology

[+] Author and Article Information
F. L. Litvin, N. X. Chen, J. Lu

Department of Mechanical Engineering, The University of Illinois at Chicago, Chicago, IL

R. F. Handschuh

U.S. Army Research Laboratory, NASA Lewis Research Center, Cleveland, OH

J. Mech. Des 117(2A), 254-261 (Jun 01, 1995) (8 pages) doi:10.1115/1.2826131 History: Received January 01, 1994; Revised July 01, 1994; Online December 11, 2007


An approach for the design and generation of low-noise helical gears with localized bearing contact is proposed. The approach is applied to double circular arc helical gears and modified involute helical gears. The reduction of noise and vibration is achieved by application of a predesigned parabolic function of transmission errors that is able to absorb a discontinuous linear function of transmission errors caused by misalignment. The localization of the bearing contact is achieved by the mismatch of pinion-gear tooth surfaces. Computerized simulation of meshing and contact of the designed gears demonstrated that the proposed approach will produce a pair of gears that has a parabolic transmission error function even when misalignment is present. Numerical examples for illustration of the developed approach are given.

Copyright © 1995 by The American Society of Mechanical Engineers
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