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Dr Christie Maddock


Mechanical and Aerospace Engineering

Personal statement

Dr Maddock is an expert in mathematical modelling and system design optimisation for transatmospheric flight vehicles, including spaceplane-based launch systems. 

Dr Maddock received her undergraduate honours degree in 2002 in Aerospace Engineering with a concentration in Electronics and Systems from Carleton University in Canada. Her thesis was on the design of an optical inter-satellite link for a LEO-GEO data relay satellite system. Her doctoral research was conducted at the University of Glasgow on the dynamics, navigation and control of a spacecraft formation of solar concentrators in the proximity of an asteroid. Prior to obtaining her PhD, Dr Maddock worked for the Canadian Spectrum Engineering Division analysing and designing future communications satellites, and sitting on a number of working parties within the Radiocommunications bureau of the International Telecommunications Union (ITU).


Has expertise in:

    • Earth-to-space vehicle design
    • Spacecraft formation flying
    • Modelling and simulation of engineering systems
    • Satellite telecommunications
    • Evaluation and analysis of trajectory design for air/space vehicles
    • Design and analysis of proximal motion dynamics, open and closed loop control
    • Analysis and/or the development and simulation of software models
    • Consultation on the regulatory process for satellite frequency and orbital location


Multi-objective optimal control of re-entry and abort scenarios
Ricciardi Lorenzo A., Maddock Christie Alisa, Vasile Massimiliano
AIAA SciTech 2018, (2018)
Vehicle and mission design of a future small payload launcher
Maddock Christie Alisa, Toso Federico, Ricciardi Lorenzo, Mogavero Alessandro, Lo Kin Hing, Rengarajan Sriram, Kontis Kostantinos, Milne Andy, Merrifield Jim, Evans David, West Michael, McIntyre Stuart
21st AIAA International Space Planes and Hypersonic Systems and Technologies ConferenceInternational Space Planes and Hypersonic Systems and Technologies Conferences, (2017)
Return and abort trajectory optimisation for reusable launch vehicles
Toso Federico, Maddock Christie
Proceedings of the 21st AIAA International Space Planes and Hypersonic Systems and Technologies ConferenceInternational Space Planes and Hypersonic Systems and Technologies Conferences, (2017)
Initial guess generation strategies for spaceplane trajectory optimisation
Toso Federico, Maddock Christie
Transactions of the Japan Society for Aeronautical and Space Sciences, (2017)
Spaceplane trajectory optimisation with evolutionary-based initialisation
Maddock Christie, Minisci Edmondo
Proceedings of the IEEE Symposium Series on Computational Intelligence, (2016)
Global solution of multi-objective optimal control problems with multi agent collaborative search and direct finite elements transcription
Ricciardi Lorenzo A., Vasile Massimiliano, Maddock Christie
2016 IEEE Congress on Evolutionary Computation, (CEC), pp. 869-876, (2016)

more publications

Professional activities

IEEE Symposium Series on Computational Intelligence
University of Kyoto, Japan
Visiting researcher

more professional activities


Preliminary design of a UK small satellite launch system RAEng Industrial Fellowship
Maddock, Christie (Principal Investigator)
Period 04-Sep-2017 - 31-Aug-2018
Doctoral Training Partnership (DTP - University of Strathclyde) | Wilson, Andrew
Vasile, Massimiliano (Principal Investigator) Maddock, Christie (Co-investigator) Wilson, Andrew (Research Co-investigator)
Period 01-Oct-2015 - 01-Apr-2019
NSTP Small Satellite Launcher (FSPL-UK)
Maddock, Christie (Principal Investigator) Minisci, Edmondo (Co-investigator)
Period 26-Apr-2016 - 29-Nov-2016
Uncertainty Treatment and OPtimisation in Aerospace Engineering (UTOPIAE) (H2020 MCSA ETN)
Vasile, Massimiliano (Principal Investigator) Akartunali, Kerem (Co-investigator) Maddock, Christie (Co-investigator) Minisci, Edmondo (Co-investigator) Revie, Matthew (Co-investigator)
Period 01-Jan-2017 - 31-Dec-2020
NSTP Call 2 (SSTO Integrated Design Platform)
Maddock, Christie (Principal Investigator) Minisci, Edmondo (Co-investigator)
This collaborative project between the University of Strathclyde and Reaction Engines Ltd.\ builds on initial research within the Centre for Future Air-Space Transportation Technology (FASTT) at the University of Strathclyde developing an integrated design platform for quickly assessing design parameters based on optimised performance and operations for space access vehicles. This project extends upper atmosphere re-entry models developed at FASTT, targeting at assessing the trajectory from atmospheric entry to the end of the hypersonic phase, to include de-orbiting and gliding phase and to implement a number of numerical tools to improve the convergence rate of the optimisation approach. Reaction Engines' Skylon vehicle is used as a test case to analyse optimised descent trajectories for their standard mission profiles. Reduced order models were used, calibrated by high fidelity simulations, for the vehicle disciplinary models. The final code is able to optimise the descent trajectory, from de-orbiting to final approach. For this project, as well as for the entire design platform, importance was given to developing a consistent and robust software framework that will facilitate the use of the spaceplane integrated design platform as an open source tool in the future.
Period 02-Mar-2015 - 31-Oct-2015
Marie Curie ITN (Stardust)
Vasile, Massimiliano (Principal Investigator) Macdonald, Malcolm (Co-investigator) Minisci, Edmondo (Co-investigator) Maddock, Christie (Research Co-investigator)
Period 01-Feb-2013 - 31-Jan-2017

more projects


Mechanical and Aerospace Engineering
James Weir Building

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