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Validation Techniques Applied on the Saab Gripen FighterEnvironmental Control System Model
Saab Aeronautics, Linköping, Sweden.ORCID iD: 0000-0002-5773-3518
Saab Aeronautics, Linköping, Sweden.ORCID iD: 0000-0002-3120-1361
Saab Aeronautics, Linköping, Sweden.
Saab Aeronautics, Linköping, Sweden.
2015 (English)In: Proceedings of the 56th SIMS / [ed] Lena Buffoni, Adrian Pop, and Bernhard Thiele, Linköping, 2015, p. 199-210, article id ecp15119199Conference paper, Published paper (Refereed)
Abstract [en]

The Environmental Control System (ECS) of the Saab Gripen fighter provides a number of vital functions, such as provision of coolant air to the avionics, comfort air to the cockpit, and pressurization of the aircraft fuel system. To support system design, a detailed simulation model has been developed in the Modelica-based tool Dymola. The model needs to be a “good system representation”, during both steady-state operation and relevant dynamic events, if reliable predictions are to be made regarding cooling performance, static loads in terms of pressure and temperature, and various other types of system analyses. A framework for semi-automatic validation of the ECS model against measurements is developed and described in this paper. The framework extends a proposed formal methodology of semi-automaticmodel validation against in-situ measurements to the model development process implemented at Saab.Applied methods for validating the model in steady-state operation and during relevant dynamic events are presented in detail. The developed framework includes automatic filtering of measurement points defined as steady-state operation and visualization techniques applied on validation experiments conducted in the previously mentioned points. The proposed framework both simplify continuous validation throughout the system development process and enables a smooth transition towards a more independent verification and validation process.

Place, publisher, year, edition, pages
Linköping, 2015. p. 199-210, article id ecp15119199
Series
Linköping Electronic Conference Proceedings, No 119, ISSN 1650-3686, E-ISSN 1650-3740 ; 119
Keywords [en]
Verification and Validation, Coverage, Domain of Validity, Historical Data Validation
National Category
Aerospace Engineering
Identifiers
URN: urn:nbn:se:liu:diva-142392DOI: 10.3384/ecp15119199ISBN: 978-91-7685-900-1 (print)OAI: oai:DiVA.org:liu-142392DiVA, id: diva2:1153438
Conference
The 56th Conference on Simulation and Modelling (SIMS 56)
Funder
VINNOVA, NFFP6 2013-01211Available from: 2017-10-30 Created: 2017-10-30 Last updated: 2017-11-16

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Hällqvist, RobertEek, MagnusGavel, Hampus
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