Analytic-Experimental Method for Determining the Eccentricity of a Cantilever Rotor

Abstract:

Various mechanical systems contain highspeed rotating bodies, which are affected by small eccentricities. During operation, such shape irregularities are the cause of vibrations that can produce malfunctioning, as well as early wear development in the bearings and in other parts of the devices. In order to control and reduce these undesirable effects, the eccentricity of the rotors must be determined, which, due to their geometrical complexity, can be seldom achieved by direct measurement. The paper proposes an analytic-experimental method for determining the eccentricity of a cantilever rotor, based on the statistical processing of data obtained by measuring the vibrations of its bearing. The application of the method is illustrated on a laboratory testing model built by the authors.

• Periodical: Applied Mechanics and Materials (Volume 430)
• Pages: 148-152
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.430.148
• Online since: September 2013
• Authors: Adrian Costache, Andrei Craifaleanu, Nicolaie Orăşanu
• Keywords: Eccentricity, Lateral Displacement, Unbalanced Rotor, Vibration

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