how to consider weight of structural members in analysis 2

[aminjamali]

Is there any way to consider the weight of structural members in an analysis (the geometry is complicated and I cant apply the weight as an external load)? I define the "Density" for my materials, but Ansys doesn't still consider the weight in the analysis.

Thanks
Amin

 

[TGS4]

You have to include an acceleration due to gravity.

 

[Stringmaker]

To elaborate on what TGS4 said this is done via the ACEL command.

 

[aminjamali]

Thanks for the notes. I defined an acceleration of gravity but i experience a strange thing: it takes a long time for Ansys to solve the problem. I didn't expect this to be such a time consuming process.

 

[cbrn]

If the "geometry" is made of several components held together by contacts, then it may be that the problem is "weakly-constrained" or even "ill-constrained" and thus convergence gets difficult even for small forces like gravity ones.
Only a guess, however...

Regards