Shock impact characteristics


How can one calculate the maximum peak acceleration produced by the shaker using the shaker system characteristics? What is the dependence based on tested object weight and positioning (on the shaker or next to it)?


For shock (and random) vibration formulas are the same – the only difference is the force that can be provided by the shaker system. The heavier the tested object is, the less peak acceleration can be provided. The same correlation is valid for horizontal testing.

Manufacturers normally specify three force values – for  sinusoidal vibration, random vibration and for  vibrational shock.