Page 10 - Vibrations 5
P. 10
4=z2=z2=6=
5 0 −1 4 −2 1 0 1
[( ) ( ) − ( )] ( ) =
0 10 −2 6 0 1 2
Perform the matrix multiplication,
Cq(MATRIX)3uOq(MATRIX)4=
The equation becomes,
0.8 − −0.4 1
( ) ( ) =
−0.2 0.6 − 2
Now calculate the determinant,
0.8 − −0.4
| |
−0.2 0.6 −
(0.8 − )(0.6 − ) − 0.4 × 0.2
2
− 1.4 + 0.48 = 0
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