
Post by Br. Marius on Feb 19, 2015 17:50:53 GMT
Calculate the torsion frequency of this blade using RayleighRitz method. Assume one term in the deflection series, the strain energy equation, and the kinetic energy equation as given.



Post by Br. Marius on Feb 23, 2015 14:22:39 GMT
I got \(\omega = \sqrt{\frac{3GJ+I_{\theta}\Omega^2R^2}{I_{\theta}R^2}}\). Work is attached. Attachments:RayleighRitz.pdf (487.96 KB)


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Post by Deleted on Feb 23, 2015 22:44:02 GMT
I think there's a typo between what you wrote here and your answer on the PDF. I believe the R in the denominator should be squared. Otherwise, we have the same answer!



Post by Br. Marius on Feb 24, 2015 14:19:15 GMT
You're rightthanks!

