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Flutter modeling in PATRAN
- Thread starter Pshell90
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- #3
I want to model a composite beam in PATRAN & calculate flutter features.
first of all, I have a problem with geometry of beam in PATRAN in aeroelasticity modulus. because it is 1-D, there is a serious problem for coupling structural mesh to aerodynamic mesh with spline. Because for aero grids the software needs elements and I can not select any elements with beam geometry .
Then I used shell instead of beam. I could validate flutter velocity with %0.5 difference, but the flutter frequency is wrong.
Please help me what to do.
first of all, I have a problem with geometry of beam in PATRAN in aeroelasticity modulus. because it is 1-D, there is a serious problem for coupling structural mesh to aerodynamic mesh with spline. Because for aero grids the software needs elements and I can not select any elements with beam geometry .
Then I used shell instead of beam. I could validate flutter velocity with %0.5 difference, but the flutter frequency is wrong.
Please help me what to do.
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