Shock Response Spectrum
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Shock Response Spectrum (SRS)
Mechanical shock pulses are often analyzed in terms of shock response spectra. The shock response spectrum assumes that the shock pulse is applied as a common base input to an array of independent single-degree-of-freedom systems. The shock response spectrum gives the peak response of each system with respect to the natural frequency. Damping is typically fixed at a constant value, such as 5%, which is equivalent to an amplification factor of Q=10.
The following tutorial gives further information: 
The SRS for an an arbitrary base input can be calculated via a digital recursive filtering relationship, which models the convolution integral.
The filtering relationship can be implemented in Python by importing the lfilter function from scipy.
from scipy.signal import lfilter
A script for doing this is given at: 
The script requires the utility module: 
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