Bird strike

Altair Forum User

Hi,

 

I am working on bird strike analysis by using Radioss.  I received following Warning message.

 

WARNING ** BUCKET FAILED, QUADRATIC SEARCH

 

What can I do to overcome this warning ?

Any suggestions ?

Altair Forum User

Hi,

 

I don't use RADIOSS (LS-Dyna user) but it sounds like a contact search failure (bucket search) and RADIOSS switch to quadratic search.

Normaly it is only a warning and not a problem (maybe lose of speed).

 

You can try to redefine contact areas, maybe some more and smaller.

 

Best regards,

Mario

Altair Forum User

Hi Mario,

 

I tried to run the model by redifining the contact its showing the same warning as mentioned below and not giving any results also.

 

** WARNING ** BUCKET FAILED, QUADRATIC SEARCH.
  ** WARNING SPH SEARCH FOR NEIGHBOURS & SPH COMPUTATION.
  ** INFO ** SPH RE-SEARCH FOR NEIGHBOURS

 

Any suggestions ?

Altair Forum User

Hi everybody

 

Have you find out the reason of the warning message?

 

I have the same problem in a woody sphere water entry....and can't find out how to overcome the warning.

 

i'm using Radioss block 120

 

best regards

 

Damir