Shock tests, drop shock tests, or shock testing are commonly used to test survivability of products, components, or subsystems to a shock event. That event can be a drop, an induced shock, or oven a pyrotechnic shock.
SignalCalc Drop Test provides shock test equipment with a dedicated platform for acquiring shocks, fairing (filtering), checking limits and tolerances, and performing Shock Response Spectra (SRS), or shock SRS, calculations. Data Physics’ drop shock test software offers an intuitive user interface designed for fast and accurate drop test capture and analysis.
Drop tests have been commonly used for product fragility assessment, prototype testing, package and cushion evaluation, and compliance with military standards. There are many different types of drop testing ranging from freely dropped boxes to guided rail drop test hardware.
Electrodynamic Shaker Shock Testing
Classical shock testing on a shaker is an efficient alternative to drop testing, bringing the advantages of better accuracy and repeatability. Performing shock testing using shakers imposes physical limitations due to the available armature displacement and shaker/amplifier power ratings. Data Physics SignalStar Classical Shock algorithms have evolved to make the best possible use of available armature displacement and to efficiently handle the dynamics of shock testing with both electrodynamic and hydraulic shakers. Additionally, many SignalForce Shakers have extended displacement capability to handle high level shocks.
Pneumatic Shock Testing
Pneumatic shock machines are capable of producing very high level shaped pulses in a repeatable manner. These machines effectively lift a table and pull the table downward to impact a stop, causing a shock. Most often these are used for very high level shock requirements.
Shipboard Shock Testing
Shipboard shock is a high impact test done on shipboard machinery. In the US, this is usually tested to the MIL-STD-901 standard. Large shock inducing machines create a very high level impact, and machinery is tested for survivability. Often shipboard shock is evaluated using SRS calculations.
Pyro-Shock, or Pyrotechnic Shock, is the dynamic structural shock that happens when an impact or explosion occurs on a given structure. Pyro-shock analysis involves the capture of high frequency transient data performing SRS testing and SRS analysis.
Whether using the standard SignalCalc Dynamic Signal Analyzer software or the dedicated SignalCalc Drop Test software, the optional SRS analysis feature enables shock response spectrum analysis on all input channels. The user can choose from maxi-max, primary positive, primary negative, residual positive, residual negative, and composite SRS types with the optional use of shock response spectrum analysis.
Learn more about SignalCalc Dynamic Signal Analyzers.