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The Analysis of Diesel Engine Turbocharger Vibration Using Time Synchronous Averaging
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Abstract
Emergency Diesel Generators are used in the nuclear industry for stationary stand-by power in order to safely shut down a reactor unit in the event of loss of off site power. Therefore, a high diesel engine reliability and availability must be maintained. Engine turbochargers often experience operating failures resulting in extended down time and costly repairs. Improved turbocharger vibration testing using time synchronous averaging is one method for evaluating the operating condition of a turbocharger. Typical vibration collection methods result in the turbocharger vibration being masked by the high background noise associated with the reciprocating nature of the engine. Time synchronous averaging reduces the background noise and allows accurate measurement of the 1x RPM component and harmonics of the turbocharger. Trends of the turbocharger vibration may then be established for diagnostic purposes, giving the analyst another tool for improving engine reliability and availability.
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Citation
Wilson, B., "The Analysis of Diesel Engine Turbocharger Vibration Using Time Synchronous Averaging," SAE Technical Paper 932500, 1993, https://doi.org/10.4271/932500.Also In
References
- United States Nuclear Regulatory Commission Regulatory Guide 1.155 “Station Blackout” August 1988
- United States Nuclear Regulatory Commission Regulatory Guide 1.9 “Selection, Design, Qualification, Testing, and Reliability of Diesel Generator Units used as Class 1E Onsite Electric Power Systems at Nuclear Power Plants” January 1991
- Nuclear Management and Resources Council, Inc. Document 87-00 “Guidelines and Technical Bases for NUMARC Initiatives Addressing Station Blackout at Light Water Reactors”, Revision 1, Appendix D, “EDG Reliability Program”, and Appendix E, “Topical Report on Effective Elements of an EDG Reliability Program” August 1991
- Institute for Nuclear Power Safety System Performance Indicator Description Update Reports December 16 1987 November 23 1988
- EPRI NP-5924, Research Project 2235-1 Surveillance, Monitoring, and Diagnostic Techniques to Improve Diesel Generator Reliability Southwest Research Institute July 1988
- Wowk V. Machinery Vibration: Measurement and Analysis McGraw-Hill New York 1991