Please help me regarding natural frequencies, Im trying to check my structure if its natural frequencies
does not exist within the frequency range form +20% to -20% of frequency at rated speed or critical speed of turbine
generator which is 50hz and 1500 rpm.
My question as attached is the participation factor in the z direction at mode 6 did not captured more than 90% only x & y captured
more than 90%, then how to get more than 90% in the z direction?
My second question as attached, If x y z mass participation capatured more than 90% at mode 6 then
can i conclude that the natural frequency of the structure is at mode 6 which is 70.371 hz.?
Kindly also check my staad if my load for calculation of frequency correct?
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