Ansys Learning Forum › Forums › Discuss Simulation › General Mechanical › Why does mass matrix only have values in the x-direction? › Reply To: Why does mass matrix only have values in the x-direction?
May 3, 2024 at 1:37 pm
C Deho
Subscriber
Hi Dave,
/AUX2
! Combine .FULL files
COMBINE, FULL
/POST1
*SMAT, MatMS, D, IMPORT, FULL, file.full, MASS
*PRINT, MatMS, Msparse.txt
I used the code above. It exports the mass matrix through modal analysis of a cantilever beam with one fixed end. The load applied was (10^5 \sin(200t)) at a single node on the end to Z direction for a transient analysis up to 1 second. While there were no issues in ANSYS, the values diverged significantly when I ran it in MATLAB.