Modeling of Degradation in Gas Turbine Engine by Modified Off Design Simulation

Authors

  • Balaji Sankar CSIR-National Aerospace Laboratories, Bangaluru - 560017, India
  • Brijeshkumar Jayesh Shah CSIR-National Aerospace Laboratories, Bangaluru - 560017, India
  • Soumendu Jana CSIR-National Aerospace Laboratories, Bangaluru - 560017, India
  • R K Satpathy DRDO-Centre for Military Airworthiness and Certification, Bangaluru, India
  • Gantayata Gouda DRDO-Centre for Military Airworthiness and Certification, Bangaluru, India

DOI:

https://doi.org/10.14429/dsj.72.15428

Keywords:

Aero-thermodynamic model, Engine health monitoring, Engine control system, Degradation simulation

Abstract

Legacy turbojet engines suffer degradation in performance with usage. Degradations in engine components show different observable symptoms based on the control mode of the engine. Hence, to accurately model the engine and its degradations, a novel off-design modeling method that considers the control settings of the engine is presented. The improvement in degradation modeling due to the modified scheme is presented in detail. The mathematical model used in the degradation simulation is validated by comparing the model outputs to the engine mounted sensor measurements at various ratings in the engine test bed. The estimation component parameters used in the model through nonlinear gas path analysis and optimisation-based routines is also presented.

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Published

2022-05-11

How to Cite

Sankar, B., Shah, B. J., Jana, S., Satpathy, R. K., & Gouda, G. (2022). Modeling of Degradation in Gas Turbine Engine by Modified Off Design Simulation. Defence Science Journal, 72(2), 135–145. https://doi.org/10.14429/dsj.72.15428

Issue

Vol. 72 No. 2 (2022)

Section

Aeronautical Systems

License

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