The impact of fretting wear on structural dynamics: Experiment and Simulation

A. Fantetti, L. R. Tamatam, M. Volvert, I. Lawal, L. Liu, L. Salles, M. R.W. Brake, C. W. Schwingshackl, D. Nowell

Research output: Contribution to journalArticlepeer-review

45 Citations (Scopus)

Abstract

This paper investigates the effects of fretting wear on frictional contacts. A high frequency friction rig is used to measure the evolution of hysteresis loops, friction coefficient and tangential contact stiffness over time. This evolution of the contact parameters is linked to significant changes in natural frequencies and damping of the rig. Hysteresis loops are replicated by using a Bouc-Wen modified formulation, which includes wear to simulate the evolution of contact parameters and to model the evolving dynamic behaviour of the rig. A comparison of the measured and predicted dynamic behaviour demonstrates the feasibility of the proposed approach and highlights the need to consider wear to accurately capture the dynamic response of a system with frictional joints over its lifetime.

Original languageEnglish
Pages (from-to)111-124
Number of pages14
JournalTribology International
Volume138
DOIs
Publication statusPublished - Oct 2019
Externally publishedYes

Keywords

  • Contact stiffness
  • Fretting wear
  • Friction coefficient
  • Hysteresis loops
  • Nonlinear dynamics

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