Balancing With Phase Only (Single-Plane and Multiplane)

A balancing technique is developed which requires nothing more sophisticated in vibration instrumentation than a pencil or a crayon. This method of balancing is a calibration weight technique which uses only the phase information at 1X (rotative speed); no amplitude information is required. The basic technique is developed for both single-plane and multiplane balancing. The technique is applicable to both in situ and shop balancing. This paper presents both novel and historical balancing theory and practice. It is novel, to the knowledge of the authors, on balancing with phase only. The historical portions on the abundantly published balancing with amplitude only and “trial weight” calibration weight balancing are included for comparison.