[Balance] Principles of Imbalance Forces and Moments - Centrifugal Force

Centrifugal Force 

  • When a mass (m) is rotated around an axis at radius ( r) and angular velocity (w), it exerts a centrifugal force ( F) in the radial direction.
  • Newton’s Law:
    Newton's Law
  • Units are: Imbalance is (mr), with units of mass times distance
    In the case of a TWA, imbalance (mr) is unknown, so the centrifugal force (F) and angular velocity (w) must first be measured to determine (mr).
    The machine must accurately and repeatedly measure (F).
Centrifugal Force Theory