Ansys release 90 002114 sas ip inc 1128 vm54 analysis

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Unformatted text preview: Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc. 1–124 VM52 Results Comparison Target ANSYS Ratio f1 , Hz 1.0981 1.0981 1.000 f2 , Hz 1.4406 1.4406 1.000 ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc. 1–125 VM53: Vibration of a String Under Tension Overview Reference: W. T. Thomson, Vibration Theory and Applications, 2nd Printing, Prentice-Hall, Inc., Englewood Cliffs, NJ, 1965, pg. 264, article 8.2. Analysis Type(s): Static Analysis (ANTYPE = 0) Mode-frequency Analysis (ANTYPE = 2) Element Type(s): Tension-only or Compression-only Spar Elements (LINK10) Input Listing: vm53.dat Test Case A flexible string with mass per unit length ρA is fixed at the ends and stretched to an initial strain εo. Determine the stress σ and force F in the string under these conditions. Determine the first three natural frequencies fi of lateral vibration of the stretched string. Figure 53.1 String Under Tension Problem Sketch Material Properties E = 30 x 106 psi ρ = 0.00073 lb-sec2/in4 Geometric Properties = 100 in A = 0....
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