Measurement of stress frequency distribution during vibration testing
Test overview
■ Purpose
To calculate the degree of damage in random vibration tests, the frequency distribution of strain (stress) is measured by rainflow analysis of the strain gauge response.
The damage degree ∑ni/Ni is calculated from the frequency distribution results and the S-N diagram.
■ EUT
Welded structural items etc.
Test state image
![](https://we-are-imv.com/wp/wp-content/uploads/2022/11/ff7894581daed04c9792518fca57324a-706x1024.jpg)
Memo
Facilities used
Dynamic strainmeters, strain gauges, frequency analysers