Foundations - Vibration Isolation & Control.

This document discusses vibration in machines and methods to control it. It notes that vibration can cause foundation and machine failure, wear, noise, fatigue failure, and excess stresses. It describes controlling vibration through the use of snubbers in refinery plants, as well as other methods like damped machining tools, balancing rotating mass, vibration isolation, dynamic vibration absorbers, active control, and input shaping. Vibration isolation is defined as the process of isolating an object from vibration sources, and can be done actively using electric power, sensors and actuators.