0
Technical Briefs

Assessment of Elliptical Conformal Hertz Analysis Applied to Constant Velocity Joints

[+] Author and Article Information
Chul-Hee Lee1

Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801

Andreas A. Polycarpou2

Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801polycarp@illinois.edu

1

Presently with INHA University, South Korea.

2

Corresponding author.

J. Tribol 132(2), 024501 (Mar 24, 2010) (3 pages) doi:10.1115/1.4000735 History: Received June 02, 2009; Revised November 20, 2009; Published March 24, 2010; Online March 24, 2010

To analyze the contact between two spherical bodies with different radii of curvature, the three-dimensional (3D) Hertz theory for elliptical contact is typically used. When the two contacting bodies have high conformity, such as the case for ball-in-groove, the Hertz theory may break down. In this research, finite element analysis (FEA) was used to assess the validity of 3D Hertz theory as found in the roller-housing contact of constant velocity joints. The contact area, normal approach, and contact pressure results show that Hertz agrees with FEA predictions for low compressive loads, where the contact ellipse is within the geometrical contact dimensions. At higher loads the contact ellipse extends beyond the contacting geometrical dimensions and the simplified analytical Hertz results diverge from the FEA results.

FIGURES IN THIS ARTICLE
<>
Copyright © 2010 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

Cross-section view of tripod CV joint contacts

Grahic Jump Location
Figure 2

FEA model for the contact between roller and housing (designated as 1 in Fig. 1)

Grahic Jump Location
Figure 3

Hertz and FEA comparison of contact parameters: (a) contact area, (b) normal approach, and (c) maximum contact pressure

Grahic Jump Location
Figure 4

Hertz and FEA comparison (P=12,512 N) of contact pressure distributions: (a) along semi-axis a and (b) along semi-axis b

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In