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Setting initial conditions with mphinputmatrix
Posted Jan 30, 2023, 1:02 p.m. EST LiveLink for MATLAB, Studies & Solvers 0 Replies
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Hi all,
I am trying to run a transient while manipulating both the initial conditons and the system matrices using the mphinputmatrix command. Namely, I am trying to set the current solution as the initial condition for the next timestep, in addition to manipulating the stiffness matrix/ load vector. However, whenever I use mphinputmatrix (and LiveLink creates the associated InputMatrix subnode in the time dependent solver), it also automatically disables the dependent variables node. Does anyone know the reason for this? Whenever I try to forcibly enable the variables node again I get an 'active dependent variables found' error. Is there a way to set the initial conditions AND manipulate the system matrices? Is the variables node the only place the solver stores initial conditions or can you input them into the time dependent solver node directly? Any help would be much appreciated.
John
Hello John Ross
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