Dear members,
I have a single storey reinforced system which is strenghtened with Steel Plate Shear Wall. due to finite elements having very small dimensions (because of studs) stable time incerement is very small (around 1 x e-7). Therefore, I need to speed up the analysis and use mass scaling factor.
the question is, what kind of mass scaling factor should I choose? 10, 100, 1000... or much more? at the same time, I need to get the least kinetic energy as possible as I can as a need of cyclic loading process.
There is no straightforward answer, my best advice is to run several simulations with different mass scaling factors/schemes and monitor the kinetic energy output until you reach a good balance between solution time and mass scaling factor.
To monitor your kinetic energy, request the energy output ALLKE and ALLIE and compare them together. ALLIE is the total internal energy while ALLKE is the kinetic energy; KE should be 5-10% of the IE.
Another solution to speed up your simulation time is to make use of loading rate. I suggest you read on mass scaling/loading rates online and from the manual as there are several resources available.
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