Moments of inertia Eigenvalue and Eigenvector 彈性力學 HR2 307 河工4A 楊熙民製
1.Rigid body consisted of four particles of masses m,2m,3m,4m,respectively situated at the points (a,a,a),(a,-a,-a),(-a,a,-a),(-a,-a,a)and connected together by a light framework .(a) Find the inertia tensor at the origin and find the principal moments of inertia.(b)Find the principal axes and verify that they are orthogonal.(c)Plot the Mohr circle.
代回原式得特徵向量 求特徵值先得到特徵方程式 此特徵向量相互正交