Applied gravity in one sirection and then the other
Applied gravity in one sirection and then the other
(OP)
I am working with a model of a circular disc with a bowl on one side (off axis concave mirror). What I am trying to do is apply a gravity load, import the displaced geometry then create a new study with a reverse gravity load. The idea is to bring the displacement back to 0, but this is not happening. Any ideas?






RE: Applied gravity in one sirection and then the other
TOP
CSWP, BSSE
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"Node news is good news."
RE: Applied gravity in one sirection and then the other
I'm trying to think my way backwards through the stiffness matrix generation, and I dont know for sure, but I dont think the math will be the same "forwards" as "backwards" like you're doing. I could be wrong.
Maybe try a very simple case and see if it works for that?
Beat to fit, paint to match.
RE: Applied gravity in one sirection and then the other
I was thinking that the imported geometry might not have enough strain to actually import correctly as the max displacement is only around 50nm.
Thanks for the suggestion mrpi, I will try a much simpler case.
RE: Applied gravity in one sirection and then the other
If you run non-linear you can do the whole thing in one run.
Is the geometric displacement of the nodes much greater than that due to elastic strain?
TOP
CSWP, BSSE
www.engtran.com www.niswug.org
www.linkedin.com/in/engineeringtransport
"Node news is good news."