# A General Shock Waveform and Characterisation Method

## TL;DR

This paper introduces a comprehensive shock waveform model based on the mechanical origins of shock, along with a signal processing method that effectively represents pyroshock and ballistic shocks in both time and frequency domains.

## Contribution

It presents a novel shock waveform with parameters that have clear mechanical meanings and a processing method that captures shock signals efficiently in multiple domains.

## Key findings

- Shock complexity correlates with the number of waveform components ($ta_{90\%}$).
- Shock dominance is quantified by a normalized parameter ($ppa$).
- The method effectively analyzes different categories of pyroshock and mechanical shocks.

## Abstract

A shock waveform is proposed based on the mechanical mechanism of shock generation in a structure. The parameters in the shock waveform have clear mechanical meanings about the generation and development of the shock. A shock signal processing method is proposed and applied to represent a pyroshock or ballistic shock signal in both temporal and frequency domain using finite terms of the shock waveform components. It is found that complexity and dominant shock distance of a shock can be described quantitatively by the number of waveform components ($\eta_{90\%}$) and a normalised parameter ($\kappa$), respectively. Pyroshock and mechanical shocks in different categories are analysed using the proposed shock waveform to demonstrate its importance and generality in shock representation.