Balancing Method for a Rigid Rotor Considering Constraint of the Correction Mass.

In balancing the rigid rotor, correction masses which are calculated by the least squares method using a performance function defined as a sum of squares of a residual vibration are often undesirable values. In the actual correction process, the magnitude of the correction masses which can be put on or cut off from the rotor is constrained by the structure and the shape of the rotor or the method of the process. In this study, an improved balancing method which can reduce the correction masses is proposed. In this balancing method, both residual vibration and correction mass are adopted as parameters of the performance function. The effectiveness of the proposed balancing method is confirmed by computer simulation and experiment using the rotating cylinder unit of the VTR.