In Live Analyzer or post-process, assess a product’s relative fatigue damage and perform a real-time measurement to indicate when a test achieves desired levels. Use the Random Test Generation tool to create an accelerated random vibration test from one or multiple files.
Download Demo All Software FeaturesAccording to Miner’s rule of damage, all structures experience fatigue when repeatedly exposed to significant stress levels, and fatigue accumulates over time.
Engineers can calculate the relative damage their product experiences in a defined period with the FDS computation. The FDS plot in ObserVIEW displays a product’s fatigue for a defined frequency range. It is a visualization and analysis tool that shows the amount of fatigue damage a product will see, whether in the lab or the field.
Comparison of test data to test specifications.
The FDS helps engineers design a random vibration test with confidence, ensuring that it will not inflict fatigue damage or reach the breaking threshold unless desired.
Engineers can use the FDS to create an accelerated random test profile that is the damage equivalent to the recorded environment.
With the Random Test Generation option, create a PSD test from multiple channels or files. The result is a profile encompassing some or all forms of potential fatigue. Optionally, apply the Kurtosion® Time Compression to reduce testing time without increasing energy.
The VibrationVIEW control software supports these profiles, making it easy to navigate from analysis to testing.
An accelerated random test must reproduce the desired levels to be accurate. The extreme response spectrum (ERS) represents the maximum amplitude response to random excitation. Engineers can use it as a tool to evaluate vibration severity.
Generate a random PSD test profile with projected fatigue damage. Similar to peak hold, the software displays the maximum value of the underlying trace compared to previous data. Once the PSD reaches the desired fatigue damage, copy the PSD to VibrationVIEW to run the profile as a test.
The Projected option displays an FDS projection using a target lifetime or target life passes. It shows how much damage the device under test would incur if tested for the given period/passes.
Real-time fatigue measurement helps identify when fatigue levels of a test profile are achieved compared to a field recording.
Review the live stream of a random test to determine when the test levels meet the reference data. Perform the analysis live or in playback mode and identify how long it takes to reach real-life fatigue levels.
The live FDS feature allows engineers to quantify the damage at the various points of a HALT/HASS table. They can view a live stream of data to determine when the product has accumulated sufficient fatigue at the frequencies of interest or when the test levels have met or exceeded a reference value. Learn more.
Calculation of HASS demand from HALT data.
Rapid failure mode precipitation testing (RFMPT™) is a test to failure that engineers can use at any time throughout their product development cycle, from proof of concept to post-production verification and validation. As a test-to-failure, RFMPT demonstrates a product’s robustness to harsh end-use environments and customer use. As an integrated process of a product development plan, it is an efficient and cost-effective way to track reliability growth.
RFMPT can identify design weaknesses at any point in the product development cycle, whether early in the concept phase, to uncover manufacturing defects before full production, or for continuous improvement after the product is in the field. Learn More.
