Version 1.0, August 31, 2001, Copyright, Hugh Jack 1993-2001
· Every moving system has some amount of vibration. This is a natural result of unbalanced components, rubbing, reversals, etc.
· Some vibrations are very predictable, and can be estimated mathematically, and their effects compensated for.
· Mathematically a vibration is a displacement/force/velocity/acceleration of small amplitude that will `shake' and object.