Dynamic Analysis of Rocking Journal Bearings With Multiple Offset Segments

[+] Author and Article Information
J. F. Booker

School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, N.Y. 14853

P. K. Goenka

Mechanical Research Department, General Motors Research Laboratories, Warren, Mich. 48090

H. J. van Leeuwen

Department of Mechanical Engineering, Eindhoven University of Technology, 5600 MB Eindhoven, Netherlands

J. of Lubrication Tech 104(4), 478-487 (Oct 01, 1982) (10 pages) doi:10.1115/1.3253261 History: Received March 16, 1981; Online November 13, 2009


Novel “offset” designs offer greatly improved durability and reduced power loss in applications for which conventional journal bearings are only marginally satisfactory. They are particularly attractive for duty cycles which combine nonreversing loading with limited angular oscillation. Production applications presently include piston-pin / cross-head bearings for two-stroke Diesel engines. The present analysis combines impedance concepts with a generalized short bearing film model for partial arc bearings. A numerical example compares performance of offset and conventional designs for a specific application.

Copyright © 1982 by ASME
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