Undamped natural frequencies

  • #1
Hello everybody,

I have a question about the undamped natural frequencies for a three degree of freedom system.

The equation of motion for the undamped system is :

M[tex]\ddot{x}[/tex]+K[tex]\dot{x}[/tex]=0

The undamped natural frequencies I found is a complex number : [tex]\omega[/tex]2=-187.29

Is this kind of result is possible? I'm surprised by the result I found since every time I've done a similar exercise before, the frequencies were always real numbers.

Thanks for your advices!
 

Answers and Replies

Related Threads on Undamped natural frequencies

Replies
0
Views
13K
  • Last Post
Replies
0
Views
2K
  • Last Post
Replies
0
Views
1K
Replies
1
Views
2K
Replies
4
Views
565
  • Last Post
Replies
2
Views
813
  • Last Post
Replies
5
Views
1K
  • Last Post
Replies
2
Views
5K
  • Last Post
Replies
1
Views
6K
  • Last Post
Replies
3
Views
2K
Top