Special Issue "Technologies for Future Distributed Engine Control Systems"

A special issue of Aerospace (ISSN 2226-4310). This special issue belongs to the section "Aeronautics".

Deadline for manuscript submissions: 31 August 2021.

Special Issue Editors

Dr. Radoslaw Przysowa
E-Mail Website
Guest Editor
Instytut Techniczny Wojsk Lotniczych (ITWL), ul. Księcia Bolesława 6, 01-494 Warszawa, Poland
Interests: measurement systems; instrumentation; turbomachinery; Aero-engine
Prof. Dr. Hany Moustapha
E-Mail Website
Guest Editor
Mechanical Engineering, École de Technologie Supérieure (ETS), Montréal, Quebec, Canada
Interests: aerodynamics; industry 4.0; Aero-engine; conceptual design; propulsion system; turbines

Special Issue Information

Dear Colleagues,

Current trends in aviation greatly expand the use of highly integrated, increasingly autonomous air vehicles, with distributed engine control systems (DECS). Such systems allow for optimizing engine performance by enhancing propulsion control architecture. In DECS, each system element (i.e., sensors, actuators, and controllers) individually connects to the network and has multiple functions. Some of them require real-time communication for control while others may be less time critical. The weight of wiring and need for cooling are significantly reduced in the engine controlled by a DECS when compared to the traditional centralized FADEC.

Implementation of DECS using advanced sensing techniques, high temperature electronics and open data communication will reverse the growing trend of increasing ratio of control system weight to engine weight and will also be a major factor in decreasing overall cost of ownership. Challenges of implementation include need for validation of engine test cell proven sensing techniques, high temperature electronics (located on or close to the sensing element), development of simple, robust communications (simplifying and reducing the wiring harness), and power supply for the on-board distributed electronics. With the limitations of standard silicon technology for current smart sensors, newer material technologies such as Silicon on Insulator (SOI) and/or Silicon Carbide (SiC) electronics are required. This Special Issue aims to include selected papers presented at NATO AVT-357 Research Workshop to be held in Berlin, Germany, during the spring 2021 AVT Panel Business Meeting Week (17–21 October, 2021) but is also open for general submissions (outside the workshop).

Dr. Radoslaw Przysowa
Prof. Dr. Hany Moustapha
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Aerospace is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • distributed intelligent control systems
  • fault tolerance concepts
  • robust control
  • flight safety
  • cybersecurity strategies
  • modular architectures
  • certification considerations
  • EMI-tolerant engine control networks
  • fiber-optic engine control networks
  • fly by light systems
  • high temperature-compatible communication architectures
  • standardized methodologies for component evaluation, integration, and testing
  • robust, reliable diagnostic and prognostic systems (PHM)
  • standardized smart sensors and actuators
  • standardized system infrastructure – software, power supplies, chips, communication hardware
  • use and transition of test cell proven advanced measurement techniques
  • fiber-optic sensing
  • certifiable components

Published Papers (1 paper)

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Research

Article
Self-Oscillations of The Free Turbine Speed in Testing Turboshaft Engine with Hydraulic Dynamometer
Aerospace 2021, 8(4), 114; https://doi.org/10.3390/aerospace8040114 - 17 Apr 2021
Viewed by 452
Abstract
Self-oscillations are one of the common problems in the complex automatic system, that can occur due to the features of the workflow and the design of the governor. The development of digital control systems has made it possible to damp self-oscillations by applying [...] Read more.
Self-oscillations are one of the common problems in the complex automatic system, that can occur due to the features of the workflow and the design of the governor. The development of digital control systems has made it possible to damp self-oscillations by applying complex control laws. However, for hydromechanical systems, such way is unacceptable due to the design complexity and the governor cost. The objective of this work is to determine the parameters of the hydromechanical free turbine speed controller, ensuring the absence of self-oscillations during ground tests of the turboshaft engine with a hydraulic dynamometer. The TV3-117VM engine (Ukraine) with the NR-3VM regulator pump (Ukraine) was selected as the object of the study. However, self-oscillations can also occur in any modifications of the TV3-117 engine with any NR-3 regulator pump. The results of the research may be of interest to engineers and scientists who investigate the dynamics of automatic control systems for similar engines. The paper analyses the nonlinear features of the empirical characteristics of the FTSC leading to self-oscillations of the engine speed. The authors propose the mathematical model of the automatic control system dynamics, which takes into account all the features of the engine and regulator pump. It is shown that the load characteristics of the water brake and the helicopter main rotor can differ significantly. Research of the dynamic characteristics of the TV3-117VM engine was carried out. The analysis showed a good agreement between the calculation results and the field test results, and made it possible to determine the parameters of the controller, which lead to self-oscillations during test. Two cases are considered. The first case includes ground tests of the engine with a water brake; the second case—flight tests of the engine as part of the helicopter’s power plant. The data obtained make it possible to develop recommendations for adjusting the hydromechanical governor without testing it on the engine. Full article
(This article belongs to the Special Issue Technologies for Future Distributed Engine Control Systems)
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