Number of modes for free free run of 4 noded shell element
Altair EmployeeAnswers
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Hi Niks,
4*6= 24 modes.
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Altair Forum User said:
How many modes does a single shell element - 4 noded (i.e. linear) have if a free free run is carried out?
If you're speaking about 'Modal Analysis', for any structure of 'free-free' type (whatever number of element), you have to have exactly 6 rigid modes of vibration.
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Altair Forum User said:
If you're speaking about 'Modal Analysis', for any structure of 'free-free' type (whatever number of element), you have to have exactly 6 rigid modes of vibration.
Yes, the first six modes or the modes with Frequency near zero are rigid modes.
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Altair Forum User said:
If you're speaking about 'Modal Analysis', for any structure of 'free-free' type (whatever number of element), you have to have exactly 6 rigid modes of vibration.
Thanks Q. Nguyen-Dai.
I was needing answer for total modes. However, as Praksh said, it will have total 24 modes.
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