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Determination of Moment of Inertia & Radius of Gyration of Flywheel (Part – VII) 

The following table summarizes the moments of inertia of some common solids around some of their principal axes.

solid/axis

moment of inertia

cylinder about symmetry axis

cylinder about central diameter

ellipsoid about principal axis

elliptical slab about major axis

elliptical slab about vertical

rectangular parallelepiped about major axis

ring about perpendicular axis

ring about diameter

rod about end

rod about center

sphere about diameter

spherical shell

torus about diameter

torus about symmetry axis

The following table summarizes the moments of inertia of some common laminae around some of their principal axes.

lamina/axis

moment of inertia

ellipse about minor axis

rectangle about minor axis

Compiled by Samar Das