Unformatted text preview: time of
0.205 sec allows the masses to reach their largest deflections. One master degree of freedom (MDOF) is selected
at each mass in the spring direction. The integration time step (0.0025 sec) is based on ≈ 1/120 of the period to
allow the initial step acceleration change to be followed reasonably well and to produce sufficient printout for ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc. 1–171 VM75
the theoretical comparison. Results are from the solution phase. POST26 is used to get displacement versus time
display. Results Comparison
Target ANSYS Ratio Time = 0.1575 sec umax, in 2.0000 1.9992 1.000 Time = 0.20 sec u, in (for Damping ratio = 0.0) 1.6536 1.6723 1.011 u, in (for Damping ratio = 0.5) 1.1531 1.1544 1.001 Figure 75.2 Displacement vs. Time Display 1–172 ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc. VM76: Harmonic Response of a Guitar String
Reference: R. D. Blevins, Formulas for Natural Frequency and Mode Shape, Van Nostra...
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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.
- Spring '09
- The Land