3. Counting Methods for Analyzing Random Time History

  1. Christian Lalanne

Published Online: 27 JAN 2010

DOI: 10.1002/9780470611968.ch3

Fatigue Damage: Mechanical Vibration and Shock Analysis, Volume 4, Second Edition

Fatigue Damage: Mechanical Vibration and Shock Analysis, Volume 4, Second Edition

How to Cite

Lalanne, C. (2009) Counting Methods for Analyzing Random Time History, in Fatigue Damage: Mechanical Vibration and Shock Analysis, Volume 4, Second Edition, ISTE, London, UK. doi: 10.1002/9780470611968.ch3

Publication History

  1. Published Online: 27 JAN 2010
  2. Published Print: 1 JAN 2009

ISBN Information

Print ISBN: 9781848211254

Online ISBN: 9780470611968

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Keywords:

  • counting methods;
  • aeronautical structures;
  • random stress;
  • stress spectrum;
  • statistical distribution

Summary

This chapter contains sections titled:

  • General

  • Peak count method

  • Peak between mean-crossing count method

  • Range count method

  • Range-mean count method

  • Range-pair count method

  • Hayes' counting method

  • Ordered overall range counting method

  • Level-crossing count method

  • Peak valley peak counting method

  • Fatigue-meter counting method

  • Rainflow counting method

  • NRL (National Luchtvaart Laboratorium) counting method

  • Evaluation of time spent at a given level

  • Influence of levels of load below fatigue limit on fatigue life

  • Test acceleration

  • Presentation of fatigue curves determined by random vibration tests