Learning Forum

[Jiawei CHEN]

Hi,

I am a student at the university of tokyo, and our lab have purchased a licence of dyna. 
We want to realize some speical boundary condition using the user defined solver.

Specifically, we want to change the ratio of MPC(Multiple Point Constraint), for example, 
ux,1 - ratio * ux,2 = 0. Is it possible to modify the codes of compiled solver to realize this?
For example, doing some implementation in dyn21.F, subroutine loadsetud, etc..
Would you please give us some hints?

Best,
Chen

[Jiawei CHEN]

More description for this problem:

We want to update the ratio after every iteration in the implicit analysis.