problem with modal analysis

[ashevchenko72]

Hi everyone!

I'm currently working on a project, i divised a satellite structure with catia and i'm trying to do a modal analysis with abaqus.
I followed the instruction given by some tuto but unfortunately i cannot manage to find acceptable results (the frequencies are all equal to 0.../the modal forms ain't that bad though).
I used mm as unit on catia and i carefully chose the material property according to that.
I also didn't forget the boundary condition (clamped at on extremity).

So i cannot figure out why my results are like that...
And i also tried directly with a simple beam just to see i the method i was using was right but same here, eigenfrequencies = 0..
So i'm definitely doing something wrong or i probably forgot to activate some option and i would we really glad if someone could help me to figure out what my problem is

You'll find enclose the .cae i'm using for the satellite structure.

Thanks in advance!!
Jérémy

 

[Mustaine3]

Check the density again. I think it's way off.

 

[ashevchenko72]

yep it was that..
Shame on me.
Thx!