This paper presents a novel approach to real-time modeling of disk temperature distribution using proper orthogonal decomposition (POD). The method combines singular value decomposition (SVD) techniques with a series of low-order transfer functions to predict the disk's thermal response over a typical flight. The model uses only typically available full authority digital electronic control (FADEC) measurements to predict temperature with accuracy of ±30 K over the whole flight cycle. A Kalman filter has also been developed based on a single temperature measurement, and the location of the measurement has been assessed in order to select the most appropriate target for instrumentation. Points all around the front and back of the disk have been assessed, and the best practice result is found to be near the center of the disk neck. This represents a compromise between matching the fast dynamic response of the rim, with the slower dynamics of the cob. The new model has been validated against an independent flight simulation.
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March 2018
Research-Article
On the Real-Time Estimation of Disk Temperature Spatial Distributions in Aeroengines
Andrew van Paridon,
Andrew van Paridon
Osney Thermo-Fluids Laboratory,
Department of Engineering Science,
University of Oxford,
Osney Mead,
Oxford OX2 0ES, UK
e-mail: andrew.vanparidon@eng.ox.ac.uk
Department of Engineering Science,
University of Oxford,
Osney Mead,
Oxford OX2 0ES, UK
e-mail: andrew.vanparidon@eng.ox.ac.uk
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Marko Bacic,
Marko Bacic
Osney Thermo-Fluids Laboratory,
Department of Engineering Science,
University of Oxford,
Osney Mead,
Oxford OX2 0ES, UK;
Department of Engineering Science,
University of Oxford,
Osney Mead,
Oxford OX2 0ES, UK;
Rolls-Royce PLC,
Moor Lane,
Derby DE24 8BJ, UK
Moor Lane,
Derby DE24 8BJ, UK
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Peter T. Ireland,
Peter T. Ireland
Osney Thermo-Fluids Laboratory,
Department of Engineering Science,
University of Oxford,
Osney Mead,
Oxford OX2 0ES, UK
Department of Engineering Science,
University of Oxford,
Osney Mead,
Oxford OX2 0ES, UK
Search for other works by this author on:
Ron Daniel
Ron Daniel
Department of Engineering Science,
University of Oxford,
Parks Road,
Oxford OX1 3PJ, UK
University of Oxford,
Parks Road,
Oxford OX1 3PJ, UK
Search for other works by this author on:
Andrew van Paridon
Osney Thermo-Fluids Laboratory,
Department of Engineering Science,
University of Oxford,
Osney Mead,
Oxford OX2 0ES, UK
e-mail: andrew.vanparidon@eng.ox.ac.uk
Department of Engineering Science,
University of Oxford,
Osney Mead,
Oxford OX2 0ES, UK
e-mail: andrew.vanparidon@eng.ox.ac.uk
Marko Bacic
Osney Thermo-Fluids Laboratory,
Department of Engineering Science,
University of Oxford,
Osney Mead,
Oxford OX2 0ES, UK;
Department of Engineering Science,
University of Oxford,
Osney Mead,
Oxford OX2 0ES, UK;
Rolls-Royce PLC,
Moor Lane,
Derby DE24 8BJ, UK
Moor Lane,
Derby DE24 8BJ, UK
Peter T. Ireland
Osney Thermo-Fluids Laboratory,
Department of Engineering Science,
University of Oxford,
Osney Mead,
Oxford OX2 0ES, UK
Department of Engineering Science,
University of Oxford,
Osney Mead,
Oxford OX2 0ES, UK
Ron Daniel
Department of Engineering Science,
University of Oxford,
Parks Road,
Oxford OX1 3PJ, UK
University of Oxford,
Parks Road,
Oxford OX1 3PJ, UK
1Corresponding author.
Contributed by the Heat Transfer Committee of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received May 12, 2017; final manuscript received July 25, 2017; published online October 17, 2017. Editor: David Wisler.
J. Eng. Gas Turbines Power. Mar 2018, 140(3): 031901 (13 pages)
Published Online: October 17, 2017
Article history
Received:
May 12, 2017
Revised:
July 25, 2017
Citation
van Paridon, A., Bacic, M., Ireland, P. T., and Daniel, R. (October 17, 2017). "On the Real-Time Estimation of Disk Temperature Spatial Distributions in Aeroengines." ASME. J. Eng. Gas Turbines Power. March 2018; 140(3): 031901. https://doi.org/10.1115/1.4037870
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