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  • Donald T. Greenwood, "Principles of Dynamics", Englewood Cliff, Prentice-Hall, Inc.,1965 .p.459, EX.9-1.
  • "MSC/NASTRAN, Verification Problem Manual", V.64, The MacNeal-Schwendler Corporation, 1986, Problem No.V0301.
  • "NISA II, Verification Manual", Version 91.0, Engineering Mechanics Research Corporation,1991.


Results


Independent1 (Theoretical)Independent2 (MSC


Independent MSC/NASTRAN
)
Independent3 (
NISA II
)
MIDASOpenBrIM Percent Difference (MIDAS
vs Independent1
vs Independent)Percent Difference (MSC/NASTRAN vs Independent)Percent Difference (
MIDAS
NISA II vs
Independent2
Independent)Percent Difference (
MIDAS
OpenBrIM vs
Independent3
Independent)
Mode1




Frequency (rad/sec)10.826710.826710.826710.826710.82670%0%0%0%
Frequency (cycle/sec)1.72311.72311.72311.72311.72310%0%0%0%
Period (sec)
Angular velocity, w1 (rad/sec)X1X2
0.58030.58030.58030.58030.58030%0%0%0%
X11.00001.00001.00001.0000




X20.5310.5310.5310.531




Mode2Frequency (rad/sec)46.182146.182146.182146.182146.18210%0%0%0%
Frequency (cycle/sec)7.35017.35017.35017.35017.35010%0%0%0%
Period (sec)
Angular velocity, w1 (rad/sec)X1X2
0.13610.13610.13610.13610.13610%0%0%0%
X1-0.133-0.133-0.133-0.133




X21.00001.00001.00001.0000