Sine on Random Testing

Vibration sine on random testing is performed by superimposing a sine wave on top of a random environment.

A sine on random vibration test duplicates the combined environment of a spinning helicopter blade with its distinct resonant levels and the rest of the aircraft which generates random engine and aerodynamic induced vibration. Gunfire on board an aircraft causes sine vibration while the rest of the aircraft generates random excitations. These types of tests are duplicating vibration characterized by dominant peaks (sinusoids) superimposed on a broadband background.

Another variation would be a swept sine on random test. The testing lab performs a sine frequency sweep such as 5Hz to 20 Hz which passes below and beyond an established resonance frequency level (such as 10Hz) to additionally stress the test material.

NTS can taylor your vibe testing to duplicate real life data or help you develop a valid simulation. We can utilize accelerometers, force limiting transducers and/or strain gauges, with over 60 data channels real time download possible. NTS facilities have safe, non-obstructed access for high worth hardware, and our personnel have an outstanding record of testing and handling delicate space equipment for over 45 years.

<< Back