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Balancing Uncertainties in Aircraft System Simulation Models
Linköping University, Department of Management and Engineering, Machine Design. Linköping University, The Institute of Technology.
Linköping University, Department of Mechanical Engineering, Machine Design. Linköping University, The Institute of Technology.
2009 (English)Conference paper, Published paper (Other academic)
Abstract [en]

In aircraft development, it is crucial to understand and evaluate behaviour, performance, safety and other aspects of the subsystems before and after they are physically available for testing. Simulation models are used to gain knowledge in order to make decisions at all development stages.

This paper focuses on how to balance different kinds of uncertainties in aircraft subsystem simulation models. It is important that the methods of assessing uncertainties are implementable in the modelling and simulation process to achieve efficient system development. In this paper we report on experience gained from a local sensitivity analysis conducted on a realistic industrial example in the form of a simulation model of the fuel system in an unmanned aerial vehicle (UAV).

Place, publisher, year, edition, pages
2009.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-52163OAI: oai:DiVA.org:liu-52163DiVA: diva2:280032
Conference
CEAS 2009 European Air and Space Conference, 26-29 October, Manchester, UK
Available from: 2009-12-08 Created: 2009-12-08 Last updated: 2011-05-10Bibliographically approved
In thesis
1. Aircraft Vehicle Systems Modeling and Simulation under Uncertainty
Open this publication in new window or tab >>Aircraft Vehicle Systems Modeling and Simulation under Uncertainty
2011 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

In aircraft development, it is crucial to understand and evaluate behavior, performance, safety and other aspects of the systems before and after they are physically available for testing. Simulation models are used to gain knowledge in order to make decisions at all development stages.

Modeling and simulation (M&S) in aircraft system development, for example of fuel, hydraulic and electrical power systems, is today an important part of the design process. Through M&S a problem in a function or system is found early on in the process.

An increasing part of the end system verification relies on results from simulation models rather than expensive testing in flight tests. Consequently, the need for integrated models of complex systems, and their validation, is increasing. Not only one model is needed, but several interacting models with known accuracies and validity ranges are required. The development of computer performance and modeling and simulation tools has enabled large-scale simulation.

This thesis includes four papers related to these topics. The first paper describes a modeling technique, hosted simulation, how to simulate a complete system with models from different tools, e.g. control software from one tool and the equipment model from another. The second paper describes the use of M&S in the development of an aircraft. The third and fourth papers describe how to increase knowledge of the model’s validity by sensitivity analysis and the uncertainty sources.

In papers one and three an unmanned aerial vehicle is used as an example and in paper four a pressure regulator is the application.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2011. 52 p.
Series
Linköping Studies in Science and Technology. Thesis, ISSN 0280-7971 ; 1497
National Category
Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-68068 (URN)LIU-TEK-LIC-2011:36 (Local ID)978-91-7393-136-6 (ISBN)LIU-TEK-LIC-2011:36 (Archive number)LIU-TEK-LIC-2011:36 (OAI)
Supervisors
Available from: 2011-05-10 Created: 2011-05-10 Last updated: 2011-05-26Bibliographically approved

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Steinkellner, SörenKrus, Petter

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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  • Other style
More styles
Language
  • de-DE
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  • en-US
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  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
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