I need to calculate the "GRMS" values in a Random Vibration analysis, but I see no reference to "GRMS" anywhere in ANSYS.
The RMS values are known as "one-sigma" values in ANSYS. Since "G" refers to acceleration in terms of gravitational acceleration, then "GRMS" is the one-sigma value for G acceleration. In POST1, this can most easily be retrieved by dividing the one-sigma acceleration values on load-step 5 by the gravitational acceleration constant. /post1 set,5,1,1/386.4 ! 1/386.4 converts in/s^2 to G assuming BIN units plns,u,x ! contour plot of Grms in x direction plns,u,y ! contour plot of Grms in y direction plns,u,z ! contour plot of Grms in z direction |
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