How do i add two transient super element modals in one deck : ASSIGN, H3DDMIG, TRANS, K:\bulk1.h3d ASSIGN, H3DDMIG, TRANS, K:\\bulk2.h3d im getting error *** ERROR # 129 *** DMIG array KAAX repeated in external file(s). Symmetric matrix KAAX pls help!
All sorts of software. Check Nastran. I believe Patran will make it really easy for you to write the deck. During my time we did not have such luxury. I had to read all theory then learn how to write the deck. Nowdays it is dumb Enginnering.
It is impossible to explain such things without the math. Craig Bampton coupling is a subject by itself. Then define residual . Then there is free free modes. This video goes over surface. Going over surface you don't learn anything.
I really did not like this video. Just too many words . Do you really expect people to understand superelements without explaining guyan reduction for example. If I were to explain I would write the math and show a picture of the wing. Show matrices stored etc. Then explain assembly and recovery. Trying to squeeze it to 45 minutes is a complete waste of time for me.
Dear Samtani, I agree with you because I have taken a vibration course where I have studied the surface of GI and CB methods. Honestly speaking I do not have solid mathematical ground on that. Even, the professor skipped all of the parts and gave us a project to do. If you have good material regarding GI and CB methods, Can you please refer it to me? I can provide you my email if you want to share anything. Thank you
@@kawsarsajib8600 There is another paper by Craig Bampton alone on his method. The hybrid method I sent you is most general. In special case hybrid method becomes Craig Bampton if no free modes. Thought this might help.
3:05 starts here
This is such a great webinar!
How do i add two transient super element modals in one deck :
ASSIGN, H3DDMIG, TRANS, K:\bulk1.h3d
ASSIGN, H3DDMIG, TRANS, K:\\bulk2.h3d
im getting error
*** ERROR # 129 ***
DMIG array KAAX repeated in external file(s).
Symmetric matrix KAAX
pls help!
Nice video ! I need to use reduced order model by Craig-Bamptom method so i will be happy if you help me to choose the best FE software plz
All sorts of software. Check Nastran. I believe Patran will make it really easy for you to write the deck. During my time we did not have such luxury. I had to read all theory then learn how to write the deck. Nowdays it is dumb Enginnering.
Hi I have a doubt
It is impossible to explain such things without the math. Craig Bampton coupling is a subject by itself. Then define residual . Then there is free free modes. This video goes over surface. Going over surface you don't learn anything.
I really did not like this video. Just too many words . Do you really expect people to understand superelements without explaining guyan reduction for example. If I were to explain I would write the math and show a picture of the wing. Show matrices stored etc. Then explain assembly and recovery. Trying to squeeze it to 45 minutes is a complete waste of time for me.
Dear Samtani,
I agree with you because I have taken a vibration course where I have studied the surface of GI and CB methods. Honestly speaking I do not have solid mathematical ground on that. Even, the professor skipped all of the parts and gave us a project to do. If you have good material regarding GI and CB methods, Can you please refer it to me? I can provide you my email if you want to share anything.
Thank you
@@kawsarsajib8600 the link is McNeal Method. Best paper I find, simple to understand.
@@manaoharsam4211 Thank you very much Samtani
@@kawsarsajib8600 There is another paper by Craig Bampton alone on his method. The hybrid method I sent you is most general. In special case hybrid method becomes Craig Bampton if no free modes. Thought this might help.
@@manaoharsam4211 Thank you very much.