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[NASMA NOOR NV]

Hi 

I have simulated a hollow cylinder for hydrodynamic analysis. I did physical experiments on the same mode. calculated viscous damoing and gave as an additional damping in aqwa. when i tried to validate the e4xperimental and numerical results the trend is seen with actual acceleration and the magnitude is matching with rao based acceleration. how to handle this .

Also

1. Acceleration is non linear but in the displacement plot the forms regular. Why is it so?
2. 
3. acceleration
4.