Vibro-acoustic Diagnostics of Rolling Bearings in Vessels

Zbigniew Stanik

doi:10.7225/toms.v03.n02.002

Abstract

Rolling bearings for many years have formed part of many mechanisms of various machines. They are also found in vessels. Rolling bearings’ failure leads to failures of entire subsystems. For this reason, it is recommended to use objective and noninvasive methods to assess the condition of key bearings having a signifi cant impact on the reliability of operation. Tools of this type include vibro-acoustic diagnostics.

Highlights

The attempts to apply methods of vibro-acoustic diagnosis to monitor the components constituting the equipment of ships and other vehicles are generally known (Grządziela, 2007; Grządziela, 2011)
Bearing nodes of propulsion systems and other components are subject to unusual sea loads caused by surging sea and dynamic effects associated with various, often unconventional vessel’s assignments
From the point of view of diagnostics, the level of vibration and noise of the new bearings is rather a kind of distortion, which should be specified in the calibration process while the determination of the parameters of vibro-acoustic processes accompanying all kinds of damage becomes important

Summary

INTRODUCTION

The attempts to apply methods of vibro-acoustic diagnosis to monitor the components constituting the equipment of ships and other vehicles are generally known (Grządziela, 2007; Grządziela, 2011). One of the components widely used that make part of ships’ engines are bearings They are applicable due to their reliability in propulsion systems. Rolling bearings are part of a very large number of basic parts of equipment in all vessels. In order to increase safety it would be recommended to refer to objective and reliable methods for monitoring the condition of rolling bearings, especially given the high density of individual components on a small surface and their interaction. One of these methods for determining the condition of the bearings is the method using vibroacoustic method

THE BEARING AS A VIBRATION AND NOISE GENERATOR

GENERATING VIBRATIONS DUE TO THE DAMAGE PULSE MODEL

CHARACTERISTIC FREQUENCY OF ROLLING BEARINGS

ANALYSIS OF LATERAL VIBRATION ON SAMPLE BEARINGS’ ENCLOSURES

Findings

CONCLUSION