centifugal load

[karnamvenu]

hi,
iam analizing a balde of an exhaust fan .And for this i need to aplly centifugal load.
i have done in the following way ,
1.created a cordinate system at axis of rotation .
2.given angular velocity in y direction(blade rotates in X-Z plane).
3.and also given density for the model in material.
is this a correct approach?
or do i have to give centifugal load as weight force by giving some transitioanal accleration?
thanks in advance for ur suggestions.

 

[JacobL]

centrifugal force is caused by the rotation around an axis, so by giving your blade density and angular velocity you should get the proper results.
Just to be on the safe side, make a little experiment with PATRAN with a simple beam which can be calculated by hand, and see if the hand calculations are similar to the results you are getting from NASTRAN.