Generate an accelerated vibration test profile to estimate a test item’s life expectancy and determine the potential failures with standard use. The vibration test acceleration software package includes three industry-leading methods for accelerating test profiles: FDS for random, SRS for shock, and Vibration Research’s STAG for sine-on-random.
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Use recorded data to create an accelerated random test that represents a lifetime of fatigue damage.
FDS Software
The fatigue damage spectrum (FDS) replicates the operational environment(s) of the device under test and is used to create an accelerated random test using recorded data. The resulting test is the damage equivalent to that which the test item will experience in its lifetime.
The FDS is based on Miner’s rule of damage: Fatigue damage will accumulate over time until it reaches a level that causes a crack or other deformation of a product.
In VibrationVIEW, create a random PSD profile from one or multiple input time-history files. The files can be weighted individually by time or cycles to achieve a total target life for the product. The output PSD will be the damage equivalent of the imported files, generated from the target life for each waveform and the FDS settings.
Displays Imported File Statistics
Quickly determine waveform statistics. FDS in VibrationVIEW displays the peak acceleration, velocity, and displacement and kurtosis of the time-history file.
Configurable Process Parameters
Define the slope of the s/n curve (beta) and quality factor (Q).
Move from Analysis to Control
With one click, begin controlling a new test profile on a shaker system. Within the same program, move from a time waveform to control on a breakpoint profile.
Supports Multiple Waveforms
Calculate the combined fatigue of multiple weighted waveforms. Overlay and compare multiple waveforms on a single plot.
Modify wavelets associated with a time-history waveform to meet SRS demand.
SRS Software
The SRS characterizes a complex shock environment and can be used to define a test with enveloped data from multiple shock events.
The SRS allows engineers to better visualize the effects of a shock on a physical system. A designer can see the maximum dynamic load of various components or assemblies of a total system under test as a function of frequency. This information can be correlated to the damage potential based on an input response.
In VibrationVIEW, use a synthetic pulse or a user-defined time history waveform as the starting point. The software will continuously modify the wavelets to adjust the time history waveform and meet the SRS demand. Make minor adjustments to the original time history file, meet or exceed an RRS, and control on SRS vs. UDT.
Supports Various Generation Techniques
Supports various synthetic waveforms including linear and exponential chirp, wavesyn, burst random, linear and exponential chirp on burst random, enveloped random, and burst sine. Alternatively, iterate an SRS waveform from a recorded waveform.
Manual Wavelet Manipulation
Manually adjust the parameters of the underlying wavelets or allow VibrationVIEW to automatically create and run the test without intervention.
Generate an accelerated Sine-on-Random test reflective of an environment with dominant sinusoidal vibration.
STAG Software STAG White Paper PDF
STAG is a real-world evaluation for products that experience dominant rotational vibration rendered as sinusoidal on a shaker table.
Standard random vibration test acceleration cannot accurately replicate an environment with dominant rotational vibration because both the sine and random background vibration must be analyzed and generated. The more accurate option is a combination of sine and random testing. A Sine-on-Random test can replicate dominant sinusoidal vibration and its orders as well as produce more consistent results than a random test.
The STAG software allows the user to analyze the order content of a waveform. The orders are then extracted, and accelerated sine tone profiles are generated. The accelerated profiles are combined with the FDS analysis of the remaining random content. Combined with FDS, the STAG tool allows for the analysis, acceleration, and generation of a real-life test.
30-Second Processing Time
Save time and reduce transposition errors by importing the analyzed sinusoidal data from ObserVIEW to VibrationVIEW. The orders are extracted from the recording before the background time waveform is processed to make sure the FDS accelerates random data only.
Analyze Order Content
Orders of importance can be manually chosen or automatically detected. Analyze the frequency ranges with dominant sine tones and modify the sine tone profile as necessary, including minimizing the low amplitude content or concentrating on a particular peak.
In vibration testing, test engineers seek to create test profiles that reflect the real world as close as possible. This helps to ensure that the product can withstand the vibration events it will experience in its lifetime. There are several test development methods where the original environment of a product can be replicated using actual field data. The result is a test profile that closely reflects—or is the equivalent to—the end environment.
In this course, you will learn:
