4. Fatigue Damage Spectrum of a Random Vibration

  1. Christian Lalanne

Published Online: 27 JAN 2010

DOI: 10.1002/9780470611975.ch4

Specification Development: Mechanical Vibration and Shock Analysis, Volume 5, Second Edition

Specification Development: Mechanical Vibration and Shock Analysis, Volume 5, Second Edition

How to Cite

Lalanne, C. (2009) Fatigue Damage Spectrum of a Random Vibration, in Specification Development: Mechanical Vibration and Shock Analysis, Volume 5, Second Edition, ISTE, London, UK. doi: 10.1002/9780470611975.ch4

Publication History

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

ISBN Information

Print ISBN: 9781848211261

Online ISBN: 9780470611975

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Keywords:

  • random vibration;
  • power spectral density;
  • fatigue damage spectrum;
  • linear system;
  • relative displacement

Summary

This chapter contains sections titled:

  • Fatigue damage spectrum from the signal as function of time

  • Fatigue damage spectrum derived from a power spectral density

  • Simplified hypothesis of Rayleigh's law

  • Calculation of the fatigue damage spectrum with Dirlik's probability density

  • Reduction of test time

  • Truncation of the peaks of the “input” acceleration signal

  • Sinusoidal vibration superimposed on a broad band random vibration

  • Swept sine superimposed on a broad band random vibration

  • Swept narrow bands on a broad band random vibration