Vibro-acoustic characteristic of a self aligning spherical journal bearing due to eccentric bore fault

P. Raharjo, S. Abdussalam, F. Gu, A. D. Ball

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Self aligning spherical journal bearing is a type of plain bearings which has spherical surface contact. This type of bearing can accommodate a misalignment problem. The journal bearing faults degrade machine performance, decrease life time service and unexpected failure which are dangerous for safety issues. Surface vibration (SV), airborne sound (AS) and acoustic emission (AE) measurements are appropriate monitoring methods for early stage journal bearing fault in low, medium and high frequency. This paper focuses on the performance comparison between SV, AS and AE measurements in the self aligning spherical journal bearing with normal and eccentric bore faults. The dynamics of the bearing is studied to gain the generation and characteristics of SV, AS and AE, which allow the extraction of useful information for diagnosis. The results of SV, AS and AE experiments especially for self-aligning spherical journal bearing due to eccentric bore fault indicate that the spectrum can detect significantly distinct between normal and faulty bearing. The statistic parameters show that RMS value and Peak value for fault bearing is higher than normal bearing. Spectrum of SV, AS and SE showed significant differences between normal bearing and eccentric bore bearing.

LanguageEnglish
Title of host publication9th International Conference on Condition Monitoring and Machinery Failure Prevention Technologies 2012, CM 2012 and MFPT 2012
PublisherBritish Institute of Non-Destructive Testing
Pages124-140
Number of pages17
Volume1
ISBN (Print)9781622764334
Publication statusPublished - 2012
Event9th International Conference on Condition Monitoring and Machinery Failure Prevention Technologies - London, United Kingdom
Duration: 12 Jun 201214 Jun 2012
Conference number: 9

Conference

Conference9th International Conference on Condition Monitoring and Machinery Failure Prevention Technologies
Abbreviated titleCM / MFPT 2012
CountryUnited Kingdom
CityLondon
Period12/06/1214/06/12

Fingerprint

Bearings (structural)
Journal bearings
Acoustics
Vibrations (mechanical)
Acoustic emissions
Acoustic waves
Statistics

Cite this

Raharjo, P., Abdussalam, S., Gu, F., & Ball, A. D. (2012). Vibro-acoustic characteristic of a self aligning spherical journal bearing due to eccentric bore fault. In 9th International Conference on Condition Monitoring and Machinery Failure Prevention Technologies 2012, CM 2012 and MFPT 2012 (Vol. 1, pp. 124-140). British Institute of Non-Destructive Testing.
Raharjo, P. ; Abdussalam, S. ; Gu, F. ; Ball, A. D. / Vibro-acoustic characteristic of a self aligning spherical journal bearing due to eccentric bore fault. 9th International Conference on Condition Monitoring and Machinery Failure Prevention Technologies 2012, CM 2012 and MFPT 2012. Vol. 1 British Institute of Non-Destructive Testing, 2012. pp. 124-140
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Raharjo, P, Abdussalam, S, Gu, F & Ball, AD 2012, Vibro-acoustic characteristic of a self aligning spherical journal bearing due to eccentric bore fault. in 9th International Conference on Condition Monitoring and Machinery Failure Prevention Technologies 2012, CM 2012 and MFPT 2012. vol. 1, British Institute of Non-Destructive Testing, pp. 124-140, 9th International Conference on Condition Monitoring and Machinery Failure Prevention Technologies, London, United Kingdom, 12/06/12.

Vibro-acoustic characteristic of a self aligning spherical journal bearing due to eccentric bore fault. / Raharjo, P.; Abdussalam, S.; Gu, F.; Ball, A. D.

9th International Conference on Condition Monitoring and Machinery Failure Prevention Technologies 2012, CM 2012 and MFPT 2012. Vol. 1 British Institute of Non-Destructive Testing, 2012. p. 124-140.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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T1 - Vibro-acoustic characteristic of a self aligning spherical journal bearing due to eccentric bore fault

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AU - Abdussalam, S.

AU - Gu, F.

AU - Ball, A. D.

PY - 2012

Y1 - 2012

N2 - Self aligning spherical journal bearing is a type of plain bearings which has spherical surface contact. This type of bearing can accommodate a misalignment problem. The journal bearing faults degrade machine performance, decrease life time service and unexpected failure which are dangerous for safety issues. Surface vibration (SV), airborne sound (AS) and acoustic emission (AE) measurements are appropriate monitoring methods for early stage journal bearing fault in low, medium and high frequency. This paper focuses on the performance comparison between SV, AS and AE measurements in the self aligning spherical journal bearing with normal and eccentric bore faults. The dynamics of the bearing is studied to gain the generation and characteristics of SV, AS and AE, which allow the extraction of useful information for diagnosis. The results of SV, AS and AE experiments especially for self-aligning spherical journal bearing due to eccentric bore fault indicate that the spectrum can detect significantly distinct between normal and faulty bearing. The statistic parameters show that RMS value and Peak value for fault bearing is higher than normal bearing. Spectrum of SV, AS and SE showed significant differences between normal bearing and eccentric bore bearing.

AB - Self aligning spherical journal bearing is a type of plain bearings which has spherical surface contact. This type of bearing can accommodate a misalignment problem. The journal bearing faults degrade machine performance, decrease life time service and unexpected failure which are dangerous for safety issues. Surface vibration (SV), airborne sound (AS) and acoustic emission (AE) measurements are appropriate monitoring methods for early stage journal bearing fault in low, medium and high frequency. This paper focuses on the performance comparison between SV, AS and AE measurements in the self aligning spherical journal bearing with normal and eccentric bore faults. The dynamics of the bearing is studied to gain the generation and characteristics of SV, AS and AE, which allow the extraction of useful information for diagnosis. The results of SV, AS and AE experiments especially for self-aligning spherical journal bearing due to eccentric bore fault indicate that the spectrum can detect significantly distinct between normal and faulty bearing. The statistic parameters show that RMS value and Peak value for fault bearing is higher than normal bearing. Spectrum of SV, AS and SE showed significant differences between normal bearing and eccentric bore bearing.

KW - Acoustic-emission

KW - Airborne sound

KW - Eccentric bore

KW - Fault diagnosis

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KW - Surface vibration

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Raharjo P, Abdussalam S, Gu F, Ball AD. Vibro-acoustic characteristic of a self aligning spherical journal bearing due to eccentric bore fault. In 9th International Conference on Condition Monitoring and Machinery Failure Prevention Technologies 2012, CM 2012 and MFPT 2012. Vol. 1. British Institute of Non-Destructive Testing. 2012. p. 124-140