Dat test case a circular membrane of radius a

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Unformatted text preview: 00306796 in2 Loading εo = 0.00543228 Analysis Assumptions and Modeling Notes Enough elements are selected so that the same model can be used to adequately characterize the dynamic analysis. Prestress effects are turned on during the static and modal solutions. The subspace method for eigenvalue extraction is chosen solely for the sake of completeness in this manual. Other methods would also be suitable. Only the first three modes are requested. Results Comparison Target Static F, lb ANSYS Ratio 500. 500. 1.000 ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc. 1–126 VM53 Stress, psi 162,970. 1.000 Target Modal 162,974. ANSYS Ratio f1 , Hz 74.708 75.094 1.005 f2 , Hz 149.42 151.29 1.012 f3 , Hz 224.12 229.68 1.025 ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc. 1–127 VM54: Vibration of a Rotating Cantilever Blade Overview Reference: W. Carnegie, “Vibrations of Rotating Cantilever Blading”, Journal Mechanical Engineering Science, Vol. 1 No. 3...
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This note was uploaded on 12/09/2010 for the course DEPARTMENT E301 taught by Professor Kulasinghe during the Spring '09 term at University of Peradeniya.

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