liu.seSearch for publications in DiVA
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Investigating Validation of a Simulation Model for Development and Certification of Future Fighter Aircraft Fuel Systems
Linköping University, Department of Electrical Engineering, Automatic Control.
Linköping University, Department of Electrical Engineering, Automatic Control.
2016 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

In this thesis a method for verification, validation and uncertainty quantification (VV&UQ) has been tested and evaluated on a fuel transfer application in the fuel rig currently used at Saab. A simplified model has been developed for the limited part of the fuel system in the rig that is affected in the transfer, and VV&UQ has been performed on this model. The scope for the thesis has been to investigate if and how simulation models can be used for certification of the fuel system in a fighter aircraft.

The VV&UQ-analysis was performed with the limitation that no probability distributions for uncertainties were considered. Instead, all uncertainties were described using intervals (so called epistemic uncertainties). Simulations were performed on five different operating points in terms of fuel flow to the engine with five different initial conditions for each, resulting in 25 different operating modes. For each of the 25 cases, the VV&UQ resulted in a minimum and maximum limit for how much fuel that could be transferred. 6 cases were chosen for validation measurements and the resulting amount of fuel transferred ended up between the corresponding epistemic intervals.

Performing VV&UQ is a time demanding and computationally heavy task, which quickly grows as the model becomes more complex. Our conclusion is that a pilot study is necessary, where time and costs are evaluated, before choosing to use a simulation model and perform VV&UQ for certification. Further investigation of different methods for increasing confidence in simulation models is also needed, for which VV&UQ is one suitable option.

Place, publisher, year, edition, pages
2016. , 55 p.
Keyword [en]
MBSE, Simulation, Uncertainty Quantification, Aircraft, Fuel System, Certification
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:liu:diva-129300ISRN: LiTH-ISY-EX--16/4974--SEOAI: oai:DiVA.org:liu-129300DiVA: diva2:937633
External cooperation
Saab AB
Subject / course
Electrical Engineering
Presentation
2016-06-10, Linköping, 13:00 (English)
Supervisors
Examiners
Available from: 2016-06-16 Created: 2016-06-15 Last updated: 2016-06-17Bibliographically approved

Open Access in DiVA

fulltext(3322 kB)113 downloads
File information
File name FULLTEXT01.pdfFile size 3322 kBChecksum SHA-512
ecf73d6c9e5de8231e185f947cbf83943afe799d678b9e97f270709780e17790b10b1affabce411286e050508f02640100d9c02eb2e2858cecee8ca55507e4f5
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Vilhelmsson, MarkusStrömberg, Isac
By organisation
Automatic Control
Control Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 113 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 430 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf