Hello,
I’m having trouble finding all eigenvectors from complex eigenvalues for 3.6.1 bii . The complete eigenvectors format is a 4x8 matrix. I’m able to find the last row, but the rest I’m struggling with. The last row was found with this equation;
(u/)-1 = (kc)/(m*s2+kt)
Kc = 75kN
m = 122.68kg
s= any of the eigenvalues (
Kt = 2.3M\N/m
The next rows are dependent on the modes, whirl rotation, and natural frequency. The answer is the matrix in the eigenvectors picture file. The other page files are background info.
Have a look at https://www.youtube.com/watch?v=FOoi8h47Tw4
https://www.youtube.com/watch?v=cX2yyg-_eKM
http://www.wright.edu/~chaocheng.huang/lecture/mth255/mth255lect13.pdf and
@Austyn Hunter You will find a solution based on PERMAS at
https://www.researchgate.net/project/PERMAS4EDU/update/5fbaa93bac011d0001f7b63d
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