Scalar Moment of Inertia of A Rigid Body
In mechanics of machines, when designing rotary parts like gears, pulleys, shafts, couplings etc., which are used to transmit torques, the moment of inertia has to be considered. The moment of inertia is given about an axis and it depends on the shape and density of a rotating element.
When considering rotating systems like drive shafts, gear trains, and pulleys with more than one rotating element, more than one axis of rotation, an equivalent moment of inertia for the system can be found. The moment of inertia can be determined experimentally by measuring the angular acceleration for a known torque or it can be calculated from the masses and dimensions of the rotating elements and shafts.
Read more about this topic: Inertia Tensor
Famous quotes containing the words moment, inertia, rigid and/or body:
“At the thick of the dark
the moment of the cold’s
deepest plunge we brought branches
cut from the green trees
to fill our need,”
—William Carlos Williams (1883–1963)
“What is wrong with priests and popes is that instead of being apostles and saints, they are nothing but empirics who say “I know” instead of “I am learning,” and pray for credulity and inertia as wise men pray for scepticism and activity.”
—George Bernard Shaw (1856–1950)
“They work, and age, and put off men
By being unattractive, or too shy,
Or having morals anyhow, none give in:
Some of them go quite rigid with disgust
At anything but marriage....”
—Philip Larkin (1922–1986)
“Whatever men you take, keep the idea of man intact: let your soul wait whether your body does or not.”
—D.H. (David Herbert)