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Study of Industrially Applied Methods for Verification, Validation & Uncertainty Quantification of Simulator Models
Saab Aeronautics, Linköping, Sweden.ORCID iD: 0000-0002-3120-1361
Swedish National Road and Transport Research Institute, Linköping, Sweden.
Saab Aeronautics, Linköping, Sweden.
Linköping University, Department of Management and Engineering, Machine Design. Linköping University, The Institute of Technology.
2015 (English)In: International Journal of Modeling, Simulation, and Scientific Computing, ISSN 1793-9623, E-ISSN 1793-9615, Vol. 6, no 2, 1550014Article in journal (Refereed) Published
Abstract [en]

To better utilize the potential of system simulation models and simulators, industrially applicable methods for Verification, Validation and Uncertainty Quantification(VV&UQ) are crucial. This paper presents an exploratory case study of VV&UQ techniquesapplied on models integrated in aircraft system simulators at Saab Aeronauticsand in driving simulators at the Swedish National Road and Transport Research Institute(VTI). Results show that a large number of Verification and Validation (V&V)techniques are applied, some of which are promising for further development and use insimulator credibility assessment. Regarding the application of UQ, a large gap betweenacademia and this part of industry has been identified, and simplified methods areneeded. The applicability of the NASA Credibility Assessment Scale (CAS) at the studied organizations is also evaluated and it can be concluded that the CAS is consideredto be a usable tool for achieving a uniform level of V&V for all models included in asimulator, although its implementation at the studied organizations requires tailoringand coordination.

Place, publisher, year, edition, pages
World Scientific, 2015. Vol. 6, no 2, 1550014
Keyword [en]
Simulator credibility; simulation model; verification; validation; uncertainty quantification; V&V; VV&UQ; NASA Credibility Assessment Scale
National Category
Production Engineering, Human Work Science and Ergonomics
URN: urn:nbn:se:liu:diva-115105DOI: 10.1142/S1793962315500142ISI: 000365772300005OAI: diva2:793617
NFFP6 2013-01211
VINNOVA, NFFP6 2013-01211
Available from: 2015-03-09 Created: 2015-03-09 Last updated: 2016-09-29
In thesis
1. On Credibility Assessment in Aircraft System Simulation
Open this publication in new window or tab >>On Credibility Assessment in Aircraft System Simulation
2016 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The aeronautical industry is becoming increasingly reliant on Modeling and Simulation (M&S) for use throughout all system development phases, for system verification, and end-user training. To justify and to utilize the full potential of today’s model-based approach, the development of efficient and industrially applicable methods for credibility assessment of M&S efforts is a key challenge.

This work addresses methods facilitating credibility assessment of simulation models and simulator applications used in aircraft system development. For models of individual aircraft subsystems, an uncertainty aggregation method is proposed that facilitates early model validation through approximate uncertainty quantification. The central idea is to integrate information obtained during component level validation directly into the component equations, and to utilize this information in model level uncertainty quantification.

In addition to methods intended for models of individual subsystems, this work also proposes a method and an associated tool for credibility assessment of large-scale simulator applications. As a complement to traditional document-centric approaches, static and dynamic credibility information is here presented to end-users directly during simulation. This implies a support for detecting test plan deficiencies, or that a simulator configuration is not a suitable platform for the execution of a particular test. The credibility assessment tool has been implemented and evaluated in two large-scale system simulators for the Saab Gripen fighter aircraft. The work presented herein also includes an industrially applicable workflow for development, validation, and export of simulation models.

Place, publisher, year, edition, pages
Linköping University Electronic Press, 2016. 79 p.
Linköping Studies in Science and Technology. Dissertations, ISSN 0345-7524 ; 1758
National Category
Aerospace Engineering Mechanical Engineering
urn:nbn:se:liu:diva-127380 (URN)10.3384/diss.diva-127380 (DOI)978-91-7685-780-9 (Print) (ISBN)
Public defence
2016-05-27, C3, C-huset, Campus Valla, Linköping, 10:15 (English)
Available from: 2016-04-25 Created: 2016-04-25 Last updated: 2016-04-25Bibliographically approved

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