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Thermal Fatigue Analysis - Ramp up/Ramp down?

Question asked by Andrea Pickel on Oct 22, 2012

I am working on doing some thermal fatigue analysis using SW Simulation. It seems that the main idea is to create static studies (with temperature loads) and then use the results from these static studies as events in a fatigue study. This part makes sense to me, in that I could see how cycle between the high and low temperatures (having the model dwell at a certain temperature for a certain amount of time), but what I can't figure out is how to model the transition between the high and low temperatures (the ramp up/ramp down) - e.g. how to model the part where the temperature goes from the high temperature to the low temperature at (just as an example) 15 degrees Celsius/minute and vice versa, rather than just flipping betewen the high and low temps. Thank you for any help.