rms stress and psd elemental stress
Altair Employeehellloo,
during random vibration analysis should we look at psd elemental stress or rms stress ??
Answers
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Hi @jahnavi
It depends on your result interest. RMS is a type of averaging of all stresses, hence it is relevant
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Sir generally RMS means squaring each value adding them up and square root of that value.is it not same here?? Can u pls tell about RMS cumulated also.
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Hi @jahnavi
Maybe this link will help you:
http://www.emtengineering.com/wp-content/uploads/2013/04/Barry-Controls-Random-Vibration.pdf
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thankyou. sir we can see the stresses only on elements on the surface.what about other elements .if we select select some elements through window can we find thee element having maximum stress in that region
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I am not sure what you mean by surface, but you can view min/max for a set of elements using Measures panel. Check this attached video for more info.
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i meant surface as elements what we see. there will be elements inside also if it is tetramesh?? can u clarify me on this
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One way is to have a shell coat with minimal thickness over solid elements and run the analysis.
I will check if there another way to do that and will update the same with you soon.
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Hi,
what will be the unit & calculation method of PSD stress .
If I quote von mises stress under PSD stress then what result I can interpret
Thanks in advance.
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