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Engineering Asset Management 2011 pp 259–272Cite as

Estimating the Loading Condition of a Diesel Engine Using Instantaneous Angular Speed Analysis

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Part of the book series: Lecture Notes in Mechanical Engineering ((LNME))

Abstract

Continuous monitoring of diesel engine performance is critical for early detection of fault developments in the engine before they materialize and become a functional failure. Instantaneous crank angular speed (IAS) analysis is one of a few non-intrusive condition monitoring techniques that can be utilized for such tasks. In this experimental study, IAS analysis was employed to estimate the loading condition of a 4-stroke 4-cylinder diesel engine in a laboratory condition. It was shown that IAS analysis can provide useful information about engine speed variation caused by the changing piston momentum and crankshaft acceleration during the engine combustion process. It was also found that the major order component of the IAS spectrum directly associated with the engine firing frequency (at twice the mean shaft revolution speed) can be utilized to estimate the engine loading condition regardless of whether the engine is operating at normal running conditions or in a simulated faulty injector case. The amplitude of this order component follows a clear exponential curve as the loading condition changes. A mathematical relationship was established for the estimation of the engine power output based on the amplitude of the major order component of the measured IAS spectrum.

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Acknowledgments

This paper was developed within the CRC for Infrastructure and Engineering Asset Management, established and supported under the Australian Government’s Cooperative Research Centres Programme. The authors gratefully acknowledge the financial support provided by the CRC.

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Authors and Affiliations

  1. CRC for Infrastructure and Engineering Asset Management, Brisbane, QLD, 4001, Australia

    T. R. Lin, L. Ma & J. Mathew

  2. School of Engineering Systems, Queensland University of Technology, Brisbane, QLD, 4001, Australia

    T. R. Lin, A. C. C. Tan & L. Ma

Authors
  1. T. R. Lin
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  2. A. C. C. Tan
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  3. L. Ma
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  4. J. Mathew
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Corresponding author

Correspondence to T. R. Lin .

Editor information

Editors and Affiliations

  1. Dept. Mechanical, Industrial & Nuclear Engineering (MINE), University of Cincinnati College of Engineering, Cincinnati, Ohio, USA

    Jay Lee

  2. University of Michigan Dept. Mechanical Engineering, Ann Arbor, Michigan, USA

    Jun Ni

  3. Missouri University of Technology, Rolla, USA

    Jagnathan Sarangapani

  4. Management (CIEAM), Queensland University of Technology Centre for Integrated Engineering Asset, Brisbane, Queensland, Australia

    Joseph Mathew

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© 2014 Springer-Verlag London

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Lin, T.R., Tan, A.C.C., Ma, L., Mathew, J. (2014). Estimating the Loading Condition of a Diesel Engine Using Instantaneous Angular Speed Analysis. In: Lee, J., Ni, J., Sarangapani, J., Mathew, J. (eds) Engineering Asset Management 2011. Lecture Notes in Mechanical Engineering. Springer, London. https://doi.org/10.1007/978-1-4471-4993-4_24

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  • DOI: https://doi.org/10.1007/978-1-4471-4993-4_24

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  • Publisher Name: Springer, London

  • Print ISBN: 978-1-4471-4992-7

  • Online ISBN: 978-1-4471-4993-4

  • eBook Packages: EngineeringEngineering (R0)

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