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Fix SubDyn reaction load output#3297

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luwang00 wants to merge 4 commits intoOpenFAST:rc-5.0.1from
luwang00:b/SDReactOut
Open

Fix SubDyn reaction load output#3297
luwang00 wants to merge 4 commits intoOpenFAST:rc-5.0.1from
luwang00:b/SDReactOut

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@luwang00
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@luwang00 luwang00 commented Apr 2, 2026

This PR is ready to be merged.

Feature or improvement description
Previously, the reaction loads from SubDyn is missing the self-weight of the reaction joint(s). This contribution is now added back. The cable loads on the reaction joint(s) are also added just in case.

Related issue, if one exists
Issue #3293

Impacted areas of the software
SubDyn

Test results, if applicable
Likely need to update some of the r-tests involving SubDyn

  • r-test branch merging required

luwang00 added 2 commits April 2, 2026 15:29
Previously, the self-weight of the reaction node(s) is missing. This is now added back along with any cable loads on the reaction node(s) just in case.
@jjonkman
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jjonkman commented Apr 2, 2026

@luwang00 -- Thanks for fixing this. You mention "added back". I thought this term was previously already included in SubDyn. Was it removed at some point (accidentally?) and now added back?

@luwang00
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luwang00 commented Apr 2, 2026

@jjonkman Sorry, I wasn't that careful with the wording. I'm not sure when this bug was introduced. It might be that the self-weight was part of u%LMesh in the past but subsequently got separated out into p%FG at some point, but the output code is not updated to match.

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2 participants