AN INTEGRAL METHOD FOR VIBRATION COMPENSATION AND MISALIGNMENT PREVENTION IN ROTOR DYNAMIC SYSTEMS

摘要

An Integral Method for Vibration Compensation and Misalignment Prevention in Rotor Dynamic Systems. A method for suppressing vibrations in a first device (1) provided with a first rotating shaft (5) which is connected to a second rotating shaft (7) of a second device (3), which first and second shafts (5,7) are each joumaled at two places at distance of each other, and which vibrations are caused by misalignment between the first and second shafts (5,7) and unbalance of the first shaft (5), is characterized in that during rotation of the first shaft (5), the orbits of the centre of the first shaft (5) at the bearings are measured, then these orbits are analysed and the misalignment and unbalance are determined, after which still during rotation of the first shaft (5), the first device (1) is displaced to eliminate the misalignment and the bearings are displaced in radial direction to eliminate vibrations due to unbalance. First the misalignment will be eliminated, then the vibrations due to the unbalance will be eliminated which again may cause misalignment which then first will be eliminated before the vibrations due to unbalance will be further eliminated.