VIBRATION TESTING: Random Vibration - The purpose of random vibration testing is to determine the ability of hardware and components to withstand the dynamic stresses exerted by random vibration applied between upper and lower frequency limits (typically between 20 – 2000 Hz) to simulate the vibration experienced in various user environments. Random vibration is characteristic of field environments produced by manned-launch vehicles, rocket engines, high-thrust jets and various motor vehicle applications.

Sinusoidal Vibration - The purpose of sinusoidal vibration test testing is to determine the effect of frequency vibration on hardware and component parts (typically in the frequency range of 10 – 2000 Hz), as may be encountered in rockets, aircraft, missiles, and tanks. This test does not strike random frequencies as does random vibration, but sweeps across the frequency spectrum. Customized testing may be performed at a specific dwell points to investigate resonance and characteristics of fatigue, and degradation.