Hello everybody , I am student in mechanical enginnering. I have to evaluate the solution Fe-Safe. i am working on two subjects: Harmonic and PSD Vibrations. The modal analysis are done in Abaqus. I would like to understand how Fe-Safe computes Life Fatigue in case of harmonic analysis. What Fe-Safe needs to calculate the life cycle. i would like to have some tutorials in vibration analysis(harmonic/PSD). i can't find anything about Fe-Safe on the internet. I will be grateful for any help you can provide. Sincerely, salwa.