Motor Shaft Misalignment Versus Efficiency Analysis
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author = {By Stephen Jesse and John Kueck and Stephen Jesse and J. Wesley Hines and James Kuropatwinski and Andrew Edmondson and Thomas G. Carley and Dan Nower and Frank Hale},
title = {Motor Shaft Misalignment Versus Efficiency Analysis},
year = {}
}
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Abstract:
U.S. industry invests significant time and money performing precision alignment of rotating machinery. The basis for this expenditure is two assumptions: misalignment causes a decrease in motor efficiency, and misaligned machinery is more prone to failure due to increased loads on bearings, seals, and couplings. This paper addresses the first statement while future research will focus on investigating the second statement. Controlled experiments were performed at The University of Tennessee and at Oak Ridge Center for Electric Machinery System Testing to clearly discern what relationships exist between motor misalignment and motor efficiency. The results of these tests show no significant correlation between misalignment and changes in efficiency when the tested couplings were operated within the manufacturer's recommended range. This paper will discuss in detail how these results were attained. 1.0 Introduction Small improvements in motor performance can have a large impact on the o...
Citations
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| 1 | FL 33172, (305) 591-8935 Nower, D., "Misalignment: Challenging the Rules." Reliability Magazine, May/June 1994, p 38-43 – Court, Miami - 1993 |
