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RESEARCH PAPERS

Analysis of Contact Stress and Deformation in a Trilobe Polygonal Connection

[+] Author and Article Information
T. Czyzewski, M. T. Odman

Department of Mechanical Engineering, Florida Institute of Technology, Melbourne, FL 32901

J. Eng. Ind 110(3), 212-217 (Aug 01, 1988) (6 pages) doi:10.1115/1.3187871 History: Received December 10, 1987; Online July 30, 2009

Abstract

A numerical method for determination of contact stress and deformation in a multilobe connection of shafts and hubs is presented. It relies upon NASTRAN for computation of surface deflections of both members which are then matched by means of relative rotation. Several examples of stress distribution in a trilobe connection and the effects of torque and internal clearance upon maximum pressure, extent of contact, its location and torsional compliance are given. Results discredit the application of well-known Hertzian formulas to this closely conformal non-Hertzian contact and suggest a surprisingly simple approximation. This is the first published solution to the problem of contact in a trilobe connection.

Copyright © 1988 by ASME
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