Vibration Testing
We perform multiple types of vibration testing including Random, Sine, Sine-on Random, and Road-Load vibration. Our vibration capabilities range from as low as 2 lbs/force to 6,741 lbs/force with 2" stroke capacity. We also have the ability to perform combined environmental testing.
Greening can test your products with your fixture or work with you to develop and build a fixture.
We can develop a test within acceptable acceleration and resonant frequency parameters for many types of products including the following:
Test Capabilities include:
Vibration: (5 to 3,000 Hz, up to 6,741 lbf; 2 inch stroke)
- Sine Vibration
- Random Vibration
- Sine-on-Random Vibration
- Random-on-Random Vibration
- Road-Load Vibration
- Customer specific vibration profiles
Classical Shock:
- Half Sine and SRS, 100 g's
Click here for a specification sheet of Greening Electrodynamic Shaker Capabilities.
Definitions
Classical Shock is an ultra-simple shock pulse, one that is never seen in the "real world" yet is often specified in test requirements.
A mechanical or physical shock is a sudden acceleration or deceleration caused, for example, by impact, drop, kick, earthquake, or explosion. Shock is a transient physical excitation. Shock is usually measured by an accelerometer.
Random Vibration replicates complex frequencies in a chosen bandwidth.
Random on Random Vibration is performed by overlaying a random on a random profile.
Sine Dwell Vibration dwells at specific frequency, often at a resonant frequency, to duplicate a worst-case condition for the unit under test.
Sine on Random Vibration is performed by overlaying a sine dwell on a random profile.
Sine Sweep Vibration sweeps across a frequency spectra, at a specified rate, to identify resonant frequencies of a unit under test.
Shock Response Spectrum (SRS)is a graphical representation of an arbitrary transient acceleration input, such as shock in terms of how a Single Degree Of Freedom (SDOF) system (like a mass on a spring) responds to that input. The SRS is not applicable to significantly non-linear systems.