- #1
bugatti79
- 794
- 1
Hi Folks,
Is it possible to calculate the principle moments of inertia acting along the principle axes of inertia given the moments of inertia and their directional vectors. Ie , I have the following information
Moments of inertia ##J_1, J_2,J_3=18kgm2,15kgm2,6kgm2##
and the directional vectors
##\begin{bmatrix}J_{1x}& J_{1y}&J_{1z} \\ J_{2x} &J_{2y} &J_{2z} \\ J_{3x}&J_{3y} & J_{3z}\end{bmatrix}=\begin{bmatrix}0.4& 0.7&-0.2 \\ -0.8 &.1 &0.8 \\ 0.2&0.8 & 0.7\end{bmatrix}##
I also have the euler angles but I am not sure if there is some relationship between these and the directional vectors or indeed if I need them.
Any information will be appreciated.
Regards
Is it possible to calculate the principle moments of inertia acting along the principle axes of inertia given the moments of inertia and their directional vectors. Ie , I have the following information
Moments of inertia ##J_1, J_2,J_3=18kgm2,15kgm2,6kgm2##
and the directional vectors
##\begin{bmatrix}J_{1x}& J_{1y}&J_{1z} \\ J_{2x} &J_{2y} &J_{2z} \\ J_{3x}&J_{3y} & J_{3z}\end{bmatrix}=\begin{bmatrix}0.4& 0.7&-0.2 \\ -0.8 &.1 &0.8 \\ 0.2&0.8 & 0.7\end{bmatrix}##
I also have the euler angles but I am not sure if there is some relationship between these and the directional vectors or indeed if I need them.
Any information will be appreciated.
Regards