[gogohusky]

Dear all:

I'd like to apply time-varying load on structure in a MFX FSI analysis.
However, I am very confused about how to set up the procedure in MFX.
Currently I guess it's a multiframe restart, but I am not sure.
Maybe you can help me.

Suppose the load is a time-varying concentrated force to be applied on node 90.
The magnitude of the load is:

From t=0-1, ramped, force from 0 to 1
From t=1-2, force kept at 1
From t=2-3, stepped, force = 0
From t=3-4, stepped, force = 3
From t=4-5, ramped, from from 3 to 0

Under this situation, What is the corresponding APDL code in the MFX /SOLU part to apply the force on node 90 from t=0 to t=5?

Thank you for clarifying my confusion on this issue!

Sincerely,

Ryan