The rainflow-counting algorithm is used in the analysis of fatigue
data in order to reduce a randomly varying stress into a set of
simple stress reversals. It is required to allow the
application of Miner's rule in order to assess the fatigue life of a
structure subject to complex loading.
Analysis A time domain graph shows how a signal changes over time, whereas
a frequency domain graph shows how much of the signal lies within each
given frequency band over a range of frequencies. A time frequency
plot is particularly useful when cyclic loads are run up from start to
maximum speed. It can be used to determine which modes of vibration
Filtering Filtering signals can be particularly useful to remove the effect
of signal drifting or remove high frequency noise.