Welcome to the FatigueDS documentation!

FatigueDS is a Python-based toolkit for calculating the Extreme Response Spectrum (ERS) and the Fatigue Damage Spectrum (FDS) for various types of signals. It supports calculations for sine, sine-sweep, and random signals, defined in both the time domain and the frequency domain.

For a quick guide on using the package, see Getting started. For short examples of using the package with sine and sine sweep signals, see Sine and sine-sweep signal. For a short example using a random signal, see Random signal

The source-code for this package is available on GitHub.

The theory is based on the book by C. Lalanne [1].

Contents

• Getting started
  • Importing the package
  • Creating a Spectrum object
  • Setting the load signal
  • Calculating the ERS and FDS
  • Plotting the results
• Examples
  • Random signal
  • Sine and sine-sweep signal

References:

[1]

C. Lalanne, Mechanical Vibration and Shock: Specification development, London, England: ISTE Ltd and John Wiley & Sons, 2009