Theoretical estimation of torque and power for misaligned rotors using response surface analysis

Abstract

Abstract A major cause for the production of higher harmonic forces on the rotating system is the Misalignment between the shafts. This in-turn produces vibrations during the function of any turbine unit that can bring about untimely wear of bearings, loosening of disparate fasteners, and crash of the entire installation. Good efficiency can well be ensured by means of the proper alignment with the rotating elements’ motor axis. And it also makes sure that the motion and power transmission happens devoid of significant loss. The misalignment can well be found if there is a variation on the torque at the motor end. Along with it, the misalignment can well be detected by the torque variation. Here, utilizing the theoretical relationship betwixt the deflection factor and harmonic bending force generated on a formed test rig, the torque and power surge are simulated. Aimed at the data analysis, a statistical design centered upon the Responses Surface Methodology (RSM) is employed. The outcomes are plotted utilizing the Box-Behnken (BB) model to perform a simplified economical study that exhibits when a preventive in addition to predictive methodology can well be applied in the instance of misalignment.