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calculation of dynamic mechanical values with ANSYS

 
Finite Element Modeling
Last Post by Ikram 8 years ago
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Posts: 6
 Ikram
Topic starter
Jun 30, 2015 2:44 pm
(@Ikram)
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Joined: 8 years ago

Hi all,

for my studies I have to create a simualtion model of a thermoplastic gear using ANSYS. The viscoelastic behaviour is described with the help of prony series. In the model Im looking only at one tooth which is loaded by a sinus force. Now Id like to calculate the storage energy, loss energy and damping for each cycle, but I have no idea how to do it best.

Do you have any suggestions how to proceed in ANSYS???

I would be very happy if anyone could give me some advice at this point. Thanks for your help.

Best regards

Johannes

Topic Tags
ansys damping hysteresis loss storage
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Posts: 3982
 Jorgen
Jul 01, 2015 4:57 am
(@jorgen)
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Joined: 4 years ago

In vague terms, all you need to do is extract the proper energy terms from ANSYS.
For details, see the manuals...

-Jorgen

Topic Tags
ansys damping hysteresis loss storage
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Posts: 6
 Ikram
Topic starter
Jul 01, 2015 11:33 am
(@Ikram)
Active Member
Joined: 8 years ago

Hello Jorgen,

thanks for your answer. Just one more question: As Im using viscoelastic material properties I expected to be able to recognize a shift between stress and strain when looking at both plotted over time. But I cant identify a shift when looking at the plots in ANSYS. Is the shift just too small to identify when looking at the plots? Is it an indication of a failure in my material model? Or do I get anything else wrong?

Thanks for your help.

Johannes

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Topic Tags:  ansys (9) , damping , hysteresis , loss , storage ,
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