Sample Problem

Sample Problem

Large machine components that undergo prolonged, high-speed rotation are first examined for the possibility of failure in a spin test system. In this system, a component is spun up (brought up to high speed) while inside a cylindrical arrangement of lead bricks and containment liner, all within a steel shell that is closed by a lid clamped into place.

SOLUTION: The Key Idea here is that this released energy was equal to the rotational kinetic energy K of the rotor just as it reached the angular speed of 14000 rev/min. We can find K with , but first we need an expression.

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