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Transient Effects in Friction

Fractal Asperity Creep

  • Andreas Goedecke

Part of the Engineering Materials book series (ENG.MAT.)

Table of contents

  1. Front Matter
    Pages i-xv
  2. Andreas Goedecke
    Pages 1-16
  3. Andreas Goedecke
    Pages 17-39
  4. Andreas Goedecke
    Pages 41-60
  5. Andreas Goedecke
    Pages 61-74
  6. Andreas Goedecke
    Pages 75-117
  7. Andreas Goedecke
    Pages 119-162
  8. Andreas Goedecke
    Pages 163-178
  9. Back Matter
    Pages 179-197

About this book

Introduction

Transient friction effects determine the behavior of a wide class of mechatronic systems. Classic examples are squealing brakes, stiction in robotic arms, or stick-slip in linear drives. To properly design and understand mechatronic systems of this type, good quantitative models of transient friction effects are of primary interest.
The theory developed in this book approaches this problem bottom-up, by deriving the behavior of macroscopic friction surfaces from the microscopic surface physics. The model is based on two assumptions: First, rough surfaces are inherently fractal, exhibiting roughness on a wide range of scales. Second, transient friction effects are caused by creep enlargement of the real area of contact between two bodies.
This work demonstrates the results of extensive Finite Element analyses of the creep behavior of surface asperities, and proposes a generalized multi-scale area iteration for calculating the time-dependent real contact between two bodies. The toolset is then demonstrated both for the reproduction of a variety of experimental results on transient friction as well as for system simulations of two example systems.

Keywords

Creep Behavior of Surface Asperities Rough Surfaces transient friction

Authors and affiliations

  • Andreas Goedecke
    • 1
  1. 1., Siemens AGSiemens Corporate TechnologyMunichGermany

Bibliographic information

  • DOI https://doi.org/10.1007/978-3-7091-1506-0
  • Copyright Information Springer-Verlag Wien 2013
  • Publisher Name Springer, Vienna
  • eBook Packages Engineering
  • Print ISBN 978-3-7091-1505-3
  • Online ISBN 978-3-7091-1506-0
  • Series Print ISSN 1612-1317
  • Series Online ISSN 1868-1212
  • Buy this book on publisher's site
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