An introduction to a unified approach to flexible rotor balancingTwo types of technique for flexible-rotor balancing are examined: the influence coefficient method, and the modal balancing method. Briefly, the influence coefficient method seeks those correction masses in a predetermined set of planes which will minimize measured vibration (readings) at a series of sensors and speeds, as predicted by influence coefficients relating vibration readings to mass additions; the influence coefficients are normally determined by a series of trial mass tests. The modal balancing method seeks to balance the rotor, one mode at a time, with a set of masses specifically selected not to disturb previously balanced lower modes, the sensitivity to this combination of masses is determined empirically by a series of trial mass tests. The two approaches are compared in supercritical-shaft balancing tests, and some common features are stressed for ultimate incorporation into a unified approach toward flexible-rotor balancing.
Document ID
19790048410
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Parkinson, A. G. (University College London, United Kingdom)
Smalley, A. J. (University Coll. London, United Kingdom)
Badgley, R. H. (Mechanical Technology, Inc. Latham, N.Y., United States)
Darlow, M. S. (University Coll. London, United Kingdom)
Date Acquired
August 9, 2013
Publication Date
March 1, 1979
Subject Category
Mechanical Engineering
Report/Patent Number
ASME PAPER 79-GT-161
Meeting Information
Meeting: American Society of Mechanical Engineers, Gas Turbine Conference and Exhibit and Solar Energy Conference
Location: San Diego, CA
Start Date: March 12, 1979
End Date: March 15, 1979
Sponsors: American Society of Mechanical Engineers