[MBDyn-users] Bug to compute angular acceleration (LDLSolve)

CamilleYvin camille.yvin at orange.fr
Wed Mar 19 10:59:49 CET 2014


Dear Mr. Masarati,

 

I think there is a bug to compute the angular acceleration. Indeed, in the function "AutomaticStructElem::ComputeAccelerations", the system is solved by the function "LDLSolve" which I think doesn't work because when I replace it by "Solve" I get the expected result :

 

ACCEL W                                                       : 2 3 1
ACCEL Jcg                                                    : 392.106 38.9418 0 38.9418 207.894 0 0 0 800
ACCEL W.Cross(Jcg*W)                                  : -1698.43 698.962 1299.98
ACCEL Jcg-1*[W.Cross(Jcg*W)] (LDLSolve)    : -4.50861 3.87361 1.62498
ACCEL Jcg-1*[W.Cross(Jcg*W)] (Solve)          : -4.75391 4.25259 1.62498

 

Could you confirm please ? Thanks.

 

Best regards,

 

Camille Yvin
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