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

Direct link
Cite
Citation style
  • apa
  • 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
A Novel FMI and TLM-based Desktop Simulator for Detailed Studies of Thermal Pilot Comfort
Systems Simulation and Concept Design, Saab Aeronautics, Linköping, Sweden.ORCID iD: 0000-0002-5773-3518
Linköping University, Department of Management and Engineering, Applied Thermodynamics and Fluid Mechanics. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0003-0204-5395
Systems Simulation and Concept Design, Saab Aeronautics, Linköping, Sweden.
Linköping University, Department of Management and Engineering, Fluid and Mechatronic Systems. Linköping University, Faculty of Science & Engineering.
Show others and affiliations
2018 (English)In: ICAS congress proceeding, International Council of the Aeronautical Sciences , 2018, article id ICAS2018_0203Conference paper, Published paper (Other academic)
Abstract [en]

Modelling and Simulation is key in aircraft system development. This paper presents a novel, multi-purpose, desktop simulator that can be used for detailed studies of the overall performance of coupled sub-systems, preliminary control design, and multidisciplinary optimization. Here, interoperability between industrially relevant tools for model development and simulation is established via the Functional Mockup Interface (FMI) and System Structure and Parametrization (SSP) standards. Robust and distributed simulation is enabled via the Transmission Line element Method (TLM). The advantages of the presented simulator are demonstrated via an industrially relevant use-case where simulations of pilot thermal comfort are coupled to Environmental Control System (ECS) steadystate and transient performance.

Place, publisher, year, edition, pages
International Council of the Aeronautical Sciences , 2018. article id ICAS2018_0203
Keywords [en]
OMSimulator; FMI; TLM; Pilot Thermal Comfort; Modelling and Simulation
National Category
Applied Mechanics Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:liu:diva-152897ISBN: 9783932182884 (print)OAI: oai:DiVA.org:liu-152897DiVA, id: diva2:1266089
Conference
31st Congress of the International Council of the Aeronautical Sciences,Belo Horizonte, Brazil, September 9-14, 2018
Available from: 2018-11-27 Created: 2018-11-27 Last updated: 2023-01-19Bibliographically approved
In thesis
1. On Standardized Model Integration: Automated Validation in Aircraft System Simulation
Open this publication in new window or tab >>On Standardized Model Integration: Automated Validation in Aircraft System Simulation
2019 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

Designing modern aircraft is not an easy task. Today, it is not enough to optimize aircraft sub-systems at a sub-system level. Instead, a holistic approach is taken whereby the constituent sub-systems need to be designed for the best joint performance. The State-of-the-Art (SotA) in simulating and exchanging simulation models is moving forward at a fast pace. As such, the feasible use of simulation models has increased and additional benefits can be exploited, such as analysing coupled sub-systems in simulators. Furthermore, if aircraft sub-system simulation models are to be utilized to their fullest extent, opensource tooling and the use of open standards, interoperability between domain specific modeling tools, alongside robust and automated processes for model Verification and Validation (V&V) are required.

The financial and safety related risks associated with aircraft development and operation require well founded design and operational decisions. If those decisions are to be founded upon information provided by models and simulators, then the credibility of that information needs to be assessed and communicated. Today, the large number of sensors available in modern aircraft enable model validation and credibility assessment on a different scale than what has been possible up to this point. This thesis aims to identify and address challenges to allow for automated, independent, and objective methods of integrating sub-system models into simulators while assessing and conveying the constituent models aggregated credibility.

The results of the work include a proposed method for presenting the individual models’ aggregated credibility in a simulator. As the communicated credibility of simulators here relies on the credibility of each included model, the assembly procedure itself cannot introduce unknown discrepancies with respect to the System of Interest (SoI). Available methods for the accurate simulation of coupled models are therefore exploited and tailored to the applications of aircraft development under consideration. Finally, a framework for automated model validation is outlined, supporting on-line simulator credibility assessment according to the presented proposed method.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2019. p. 76
Series
Linköping Studies in Science and Technology. Licentiate Thesis, ISSN 0280-7971 ; 1866
National Category
Embedded Systems
Identifiers
urn:nbn:se:liu:diva-162810 (URN)10.3384/lic.diva-162810 (DOI)9789179299293 (ISBN)
Opponent
Supervisors
Projects
Model Validation – from Concept to ProductOpen Cyber-Physical System Model-Driven Certified Development (OpenCPS).
Funder
Vinnova
Note

Ytterligare forskningsfinansiär: Saab Aeronautics

Available from: 2019-12-20 Created: 2019-12-19 Last updated: 2020-01-16Bibliographically approved
2. On the Realization of Credible Simulations in Aircraft Development: Efficient and Independent Validation Enabled by Automation
Open this publication in new window or tab >>On the Realization of Credible Simulations in Aircraft Development: Efficient and Independent Validation Enabled by Automation
2023 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Designing modern aircraft is not an easy task. Today, it is not enough to optimize aircraft subsystems at a subsystem level. Instead, a holistic approach is necessary whereby the constituent subsystems need to be designed for the best joint performance. The State-of-the-Art (SotA) in simulating and ex-changing simulation models is moving forward at a fast pace. As such, the feasible use of simulation models has increased and additional benefits can be exploited, such as analyzing coupled subsystems in simulators. Furthermore, if aircraft subsystem simulation models are to be utilized to their fullest extent, open-source tooling and the use of open standards, interoperability between domain specific modeling tools, alongside efficient and automated processes for model Verification and Validation (V&V) and credibility assessment are required.

The financial and safety related risks associated with aircraft development and operation require well founded design and operational decisions. If those decisions are to be founded upon information provided by models and simulators, then the credibility of that information needs to be assessed and communicated. Today, the large number of sensors available in modern aircraft enable model validation and credibility assessment on a different scale than what has been possible up to this point. This thesis aims to identify and address challenges to allow for automated, independent, and objective methods of integrating subsystem models into simulators while assessing and conveying the constituent models aggregated credibility.

The results of the work include a proposed method for presenting the individual models’ aggregated credibility in a simulator. As the communicated credibility of simulators here relies on the credibility of each included model, the assembly procedure itself cannot introduce unknown discrepancies with respect to the System of Interest (SoI). Available methods for the management, distribution, and accurate simulation of coupled models are therefore exploited and tailored to the applications of aircraft development under consideration. Finally, a framework for automated model validation is outlined and established that supports both on-line and on-line simulator credibility assessment.   

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2023. p. 341
Series
Linköping Studies in Science and Technology. Dissertations, ISSN 0345-7524 ; 2279
Keywords
Aircraft Vehicle Systems, Credibility Assessment, FMI, Interoperability, Modelica, Modeling and Simulation, Model integration, SSP
National Category
Embedded Systems
Identifiers
urn:nbn:se:liu:diva-191132 (URN)10.3384/9789179295981 (DOI)9789179295974 (ISBN)9789179295981 (ISBN)
Public defence
2023-03-03, ACAS, A-building, Campus Valla, Linköping, 10:15 (English)
Opponent
Supervisors
Note

Funding agencies: INNOVA and Saab Aeronautics

Available from: 2023-01-19 Created: 2023-01-19 Last updated: 2023-01-19Bibliographically approved

Open Access in DiVA

fulltext(1181 kB)161 downloads
File information
File name FULLTEXT01.pdfFile size 1181 kBChecksum SHA-512
04826fb79e214672d23be5b1df46d0734acd2f6250d067cebb9bcfe37f0aac30b82ba30980968569a17d3e9081c1539abe7747e436be9adc50c5d85722ae9dae
Type fulltextMimetype application/pdf

Authority records

Hällqvist, RobertSchminder, JörgBraun, RobertGårdhagen, RolandKrus, Petter

Search in DiVA

By author/editor
Hällqvist, RobertSchminder, JörgBraun, RobertGårdhagen, RolandKrus, Petter
By organisation
Applied Thermodynamics and Fluid MechanicsFaculty of Science & EngineeringFluid and Mechatronic Systems
Applied MechanicsOther Electrical Engineering, Electronic Engineering, Information Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 161 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

isbn
urn-nbn

Altmetric score

isbn
urn-nbn
Total: 516 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • 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