0
Research Papers: Gas Turbines: Structures and Dynamics

Dynamic Analysis of Fretting-Wear in Friction Contact Interfaces

[+] Author and Article Information
Loïc Salles

École Centrale de Lyon, Laboratoire de Tribologie et Dynamique des Systèmes, 36 Avenue Guy de Collongue, 69134 Ecully Cedex, France; Snecma—Safran Group, 77550 Moissy-Cramayel, France; Moscow State University of Technology Named After Bauman, Moscow 105005, Russialoic.salles@ec-lyon.fr

Laurent Blanc, Fabrice Thouverez

École Centrale de Lyon, Laboratoire de Tribologie et Dynamique des Systèmes, 36 Avenue Guy de Collongue, 69134 Ecully Cedex, France

Alexander M. Gouskov

 Moscow State University of Technology Named After Bauman, Moscow 105005, Russia

J. Eng. Gas Turbines Power 132(1), 012503 (Sep 30, 2009) (9 pages) doi:10.1115/1.3028229 History: Received April 18, 2008; Revised May 06, 2008; Published September 30, 2009

Fretting wear is a very important phenomenon occurring in bladed disks. It causes the blades to be replaced in turbomachines during their life-cycle. Methods exist to predict fretting-wear in quasistatic analysis. However, they do not predict all the phenomena observed in blade attachments on real turbomachines. That is why this study assumes that dynamics plays a role in fretting-wear. This paper is devoted to the realistic modeling and calculation of fretting-wear and dynamical response of structures in unilateral contact with friction. Vibration and wear phenomena present very different scales both in time and space. Therefore the difficulty is in finding methods that enable one to solve the nonlinear problem with a good compromise between the approximations made about the dynamical aspects and those linked with fretting-wear issues. Here, phenomenological examples are studied. They involve a small number of degrees of freedom with a view to understanding the complex coupling between vibration and fretting-wear. This way, they will show the relative importance of parameters.

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

References

Figures

Grahic Jump Location
Figure 1

Description of the problem of contact between two solids

Grahic Jump Location
Figure 2

Computation of the Lagrangian vector with wear

Grahic Jump Location
Figure 3

Computation of the Lagrangian vector

Grahic Jump Location
Figure 5

Frequency response of mass m1 for several levels of excitation force

Grahic Jump Location
Figure 6

Frequency response of relative displacement for several levels of excitation force

Grahic Jump Location
Figure 7

Wear depth evolution on a frequency range for Fex=6 N (a), Fex=10 N (b), and Fex=14 N (c)

Grahic Jump Location
Figure 8

Pseudofrequency response of vibration amplitude of mass m1 for four cases

Grahic Jump Location
Figure 9

Pseudofrequency response of vibration amplitude of mass m1 for Fex=6 N (a),Fex=10 N (b), and Fex=14 N (c)

Grahic Jump Location
Figure 10

Wear depth evolution with different harmonics orders

Grahic Jump Location
Figure 11

Wear depth evolution with three methods

Grahic Jump Location
Figure 12

Wear depth evolution with polynomial approach for Fex=10 N

Grahic Jump Location
Figure 13

Relative displacements with DLFT and integration

Grahic Jump Location
Figure 14

Relative displacements with polynomial DLFT

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