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Research project title

Electromagnetic and circuit simulation models for aircraft electrical wiring (Master's or Ph.D.)

Education level

Master or doctorate

Director/co-director

Director: Frédéric Sirois

Co-director(s): Handy Fortin-Blanchette (ETS), Jean-Pierre David (Polytechnique)

End of display

October 31, 2020

Areas of expertise

Unit(s) and department(s)

Department of Electrical Engineering

Department of engineering physics

Department of computer engineering

Conditions

The project is mainly for students with a bacchelors or a Master's in Electrical Enginnering, Engineering Physics or Computer Sciences, interested in advanced electromagnetic modeling (Ph.D.), experimental caracterization of complex electrical cabling systems (Master's) and automation of numerical simulation processes (Master's). It is possible to realize this project entirely in English, since the industrial partners operate in a biligual environment (Bombardier Aviation, Pratt & Withney Canada, OPAL-RT, IDS). However, the language for the Master's courses in Polytechnique is French.

Detailed description

Electrification of air transportation pushes aircraft manufacturers such as Bombardier Aviation to develop state-of-the-art tools and techniques to achieve certification more rapidly. One of these tools is numerical simulation, in particular real-time simulators coupled with hardware. This approach allows testing the integration of various components rapidly and at low cost, without having to develop full-scale mock-ups. One weak point of current simulation models is the power wires. In aircrafts, bundles of wires called "harnesses" follow complicated pathways, and the conducting parts of the fuselage used as current return path. This gives rise to complicated electromagnetic behavior that requires advanced modeling tools to produce wiring models.

This problem can be solved by using several simulation tools that work fine individually, but which have never been coupled together. Starting from a cleaned CAD representation of harnesses routes plus conductors' specifications, one can use the S-PEEC method (Galileo EMT software) in order to generate frequency-dependent circuit parameters in the form of vector fitting functions, which in turn become inputs to Matlab/Simulink-based power circuit simulators (this passage represent a substantial R&D effort). Finally, in order to get closer to a real-time version of the model, an exploration of the possibilities to use hardware acceleration of the computations will be realized. The whole process will be automated through a computational workflow. Results will be extensively validated with experimental measurements performed on mock-ups of various level of complexity.

The project will provide an exceptional training opportunity for several graduate students who will have the opportunity to interact closely with 4 industrial partners in the aerospace sector.

More specifically, the following projects are currently defined:

1) Development of equivalent frequency-dependent circuit models, representing a complex geometric arrangement of cables in an aircraft. The calculations are based on the S-PEEC method, involving the resolution of integral equations for the electric and magnetic potentials.

Level: Ph.D. / Research supervisor: Frédéric Sirois (Poly) / Previous studies: Bacc. or Master in Electrical Engineering or Engineering Physics / Interests for Electromagnetism, Numerical Analysis, Modeling

2) Automation of the preprocessing of the numerical problem, its resolution, and post-processing of simulation data

Level: Master's / Research supervisor: Frédéric Sirois (Poly) / Previous studies: Bacc. in Electrical Engineering, (Engineering) Computer Science or Engineering Physics / Interests in Programming, Numerical Analysis and Modeling

3) Experimental validation of the behavior of complex cable systems in aircraft (laboratory measurements)

Level: Master's / Research supervisors: Handy Fortin-Blanchette (ETS) and Frédéric Sirois (Poly) / Previous studies: Bacc. in Electrical Engineering or Engineering Physics / Interests in Laboratory Work, Instrumentation and Modeling

4) FPGA development of hardware acceleration algorithms of equivalent circuit calculations

Level: Ph.D. / Research supervisors: Jean-Pierre David (Poly) and Frédéric Sirois (Poly) / Previous studies: Bacc. or Master's degree in Electrical Engineering or Computer Engineering / Interests in Computer Science and Algorithmics

Financing possibility

A financial support of 17,500$/year at the Master's level or 20,000$/year at the Ph.D. level is available under certain conditions (to discuss), and for a limited time. A funding supplement will be awarded in the advent of an excellence scholarship award from NSERC, FRQNT or from another source.

Frédéric Sirois

Frédéric Sirois

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