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setExternalAction – Moments
Hi,
I am a PhD student working in Qblade python SIL interface. I’m new to the Qblade and using the OC4Deepcwind example file. I need two clarification with the commands and location notations.
- I’m trying to add external moments to the mase of the structure according to below command. My forces works perfectly however, the the moments I have given does not applied to the model. I have tried different values and could not get to rotate the structure at all.
- I need to add these forces to the center of transition piece as attached in the screenshot. I used “JNT_1” as location ID, assuming that as transitioning piece. Is there any guide for the location IDs with graphical representation which i can refer in the future.
Thank you,
Charuka
Code
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Hi Charuka,
the issue is that you are using the wrong keyword: ADDMOMENT doesnt exists, you have to use ADDTORQUE.
See the corrected code below (I also corrected it slightly to match the exact function signature). Please note, when you copy/paste from the forum straight quoates are sometimes automatically converted to curly quoates, make sure that you have straight quotes in your script!
Fx=-605000.0
Fy = -4500.0
Mz = 2411240.0# Forces
QBLADE.setExternalAction(b”ADDFORCE”,b”JNT_1″,c_double(Fx),c_double(0),b”X”,c_bool(True),c_int(0))
QBLADE.setExternalAction(b”ADDFORCE”,b”JNT_1″,c_double(Fy),c_double(0),b”Y”,c_bool(True),c_int(0))
# Moments
QBLADE.setExternalAction(b”ADDTORQUE”,b”JNT_1″,c_double(Mz),c_double(0),b”Z”,c_bool(True),c_int(0))
Regarding the joints: The most direct way to find their location is to look into the SUBJOINTS table within the substructure files table. But its also possible to visualize the joint positions directly in the GUI, see the attached screenshot where I marked the relevant visualization options in red.
BR,
David
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Thank you very much David,
It started working afterwards. The joint visualization helps a lot. I will keep it in mind for the future.
Kind regards,
Charuka.
