1 Scope
This part of ISO 18431 specifies methods for the digital calculation of a shock-response spectrum (SRS) given an acceleration input, by means of digital filters. The filter coefficients for different types of shock-response spectra are given together with recommendations for adequate sampling frequency.
NOTE The definition of a shock-response spectrum given in ISO 2041, implies that a shock-response spectrum can be defined in terms of an acceleration, velocity or displacement transfer function. This part of ISO 18431 deals only with acceleration input.