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SIN ON RANDOM ANALYSIS

User: "Jebunderscore"
Jebunderscore
Altair Community Member
Updated by Jebunderscore

Hi, i must to analyze a structure subjects to SIN ON RANDOM VIBRATION. 

The output request is the RMS STRESS FIELD for RANDOM FATIGUE VERIFICATION. 

The input are 2 PSD curves (one for stocastic sin signal and one for randomic signal).

How i can perform this analysis in OPTISTRUCT?

Is it correct to do two random vibration analysis to obtain RMS stress and after to do a LINEAR SUPERPOSITION?

 

thank to all  

 

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