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
Aircraft Systems Modeling: Model Based Systems Engineering in Avionics Design and Aircraft Simulation
Linköping University, Department of Management and Engineering, Machine Design . Linköping University, The Institute of Technology.
2009 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

Aircraft developers like other development and manufacturing companies, are experiencing increasing complexity in their products and growing competition in the global market. One way to confront the challenges is to make the development process more efficient and to shorten time to market for new products/variants by using design and development methods based on models. Model Based Systems Engineering (MBSE) is introduced to, in a structured way, support engineers with aids and rules in order to engineer systems in a new way.

In this thesis, model based strategies for aircraft and avionics development are studied. A background to avionics architectures and in particular Integrated Modular Avionics is described. The integrating discipline Systems Engineering, MBSE and applicable standards are also described. A survey on available and emerging modeling techniques and tools, such as Hosted Simulation, is presented and Modeling Domains are defined in order to analyze the engineering environment with all its vital parts to support an MBSE approach.

Time and money may be saved by using modeling techniques that enable understanding of the engineering problem, state-of-the-art analysis and team communication, with preserved or increased quality and sense of control. Dynamic simulation is an activity increasingly used in aerospace, for several reasons; to prove the product concept, to validate stated requirements, and to verify the final implementation. Simulation is also used for end-user training, with specialized training simulators, but with the same underlying models. As models grow in complexity, and the set of simulation platforms is expanded, new needs for specification, model building and configuration support arise, which requires a modeling framework to be efficient.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press , 2009. , 106 p.
Series
Linköping Studies in Science and Technology. Thesis, ISSN 0280-7971 ; 1394
Keyword [en]
MBSE, MBD, Avionics, Simulation
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-17573Local ID: LIU-TEK-LIC-2009:2ISBN: 978-91-7393-692-7 (print)OAI: oai:DiVA.org:liu-17573DiVA: diva2:210451
Presentation
2009-03-06, Hus A, Sal A37, Campus Valla, Linköpings Universitet, Linköping, 10:15 (Swedish)
Opponent
Supervisors
Available from: 2009-04-27 Created: 2009-04-01 Last updated: 2009-04-27Bibliographically approved
List of papers
1. Method and Integrated Tools for Efficient Design of Aircraft Control Systems
Open this publication in new window or tab >>Method and Integrated Tools for Efficient Design of Aircraft Control Systems
2006 (English)In: 25th International Congress of the Aeronautical Sciences, 2006Conference paper, Published paper (Other academic)
Abstract [en]

This paper describes a method and an integrated environment for model based design,simulation and analysis of aircraft flight control systems. Design of flight control systemsinvolves domain knowledge from several different disciplines such as mass & inertia,aerodynamics, hydraulics and electronics which requires a structured method aswell as a powerful environment to succeed in the control system design. The core tool inthis design environment is the model editor SystemBuild which is based on functionalflow block diagrams. The presented method is illustrated using the development of theGripen fighter aircraft flight control system as an example.

Keyword
Design environment, Flight control, Model Based Development, MBD
National Category
Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-16994 (URN)
Available from: 2009-03-01 Created: 2009-03-01 Last updated: 2009-04-27
2. Hosted Simulation for Heterogeneous Aircraft System Development
Open this publication in new window or tab >>Hosted Simulation for Heterogeneous Aircraft System Development
2008 (English)Conference paper, Published paper (Other academic)
Abstract [en]

In aircraft development, it is crucial to understand and evaluate behavior, performance, safety and other aspects of the subsystems before and after they are physically available for test. Simulation models are used to gain knowledge in order to make decisions in all development stages. This paper focuses on a special kind of simulation technique called Hosted Simulation, when a model created in one tool is generated to executable code and imported (hosted) in another tool to perform simulation.

In this paper we report on experience gained from evaluating two different approaches of hosted simulation. Furthermore, the suitability of the two approaches can vary during different phases of aircraft development and utilization, from concept evaluation to end user support. The model of an aircraft subsystem shows that hosted simulation is a powerful and efficient technique.

Keyword
Hosted simulation, model detail levels, model structure, tool, fuel system
National Category
Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-17937 (URN)
Conference
26th International Congress of the Aeronautical Sciences, ICAS, 14-19 September, Anchorage, Alaska
Available from: 2009-04-27 Created: 2009-04-27 Last updated: 2011-05-10Bibliographically approved
3. Conceptual Design Using Generic Object Inheritance
Open this publication in new window or tab >>Conceptual Design Using Generic Object Inheritance
2008 (English)In: ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference: Volume 3: 28th Computers and Information in Engineering Conference, Parts A and B, New York: American Society of Mechanical Engineers, ASME , 2008, 931-941 p.Conference paper, Published paper (Refereed)
Abstract [en]

Conceptual design for complex products like aircraft and power plants requires a considerable effort since the product models become very large if they are to cover all important aspects for different stakeholders. To cope with this overall effort, designers have to rely on legacy designs and reuse, and improve the product concepts incrementally between product generations.

This paper describes a generalized inheritance mechanism we call generic object inheritance that enables quick reuse and modification of conceptual product models at any level in their hierarchical break down structures. By facilitating reuse of conceptual models of previously well studied products, more time can be spent on developing the parts that contain the edge of a new product generation. This enables keeping the modified concepts in context of a complete analyzable product model where the impact of changes can be studied without having to maintain multiple copies of the same object structures.

The paper describes how generic object inheritance is used for developing the next version of a conceptual product model of a small business jet, while reusing the essential parts of the previous version with minor modifications to design parameters and substructures.

The design and core mechanisms of generic object inheritance are briefly described, and illustrated with examples from the case study.

Place, publisher, year, edition, pages
New York: American Society of Mechanical Engineers, ASME, 2008
National Category
Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-17939 (URN)10.1115/DETC2008-49123 (DOI)000263939600094 ()978-0-7918-4327-7 (ISBN)0-7918-3831-5 (ISBN)
Conference
ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Brooklyn, New York, USA, August 3–6, 2008
Available from: 2009-04-27 Created: 2009-04-27 Last updated: 2014-09-05Bibliographically approved
4. Simulink as a Core Tool in Development of Next Generation Gripen
Open this publication in new window or tab >>Simulink as a Core Tool in Development of Next Generation Gripen
2008 (English)In: Proceedings of Nordic Matlab User Conference 2008, Stockholm, Sweden, 2008Conference paper, Published paper (Other academic)
Abstract [en]

In the planning and concept study phases of the next generation Gripen fighter aircraft, methods and tools studies have been performed. Capabilities and limitations of the Simulink toolset have been evaluated to explore how it can support model based systems/software engineering. In this paper, three different approaches of Simulink usage for functional development are presented:

  1. The functional oriented systems modeling and simulation approach where the function is in focus; complete enough to be simulatable, but abstract from an implementation point of view.
  2. An implementation oriented specification approach that is based on a modeling framework with predefined system architecture, scheduling, data types and rules for discretization. The resulting embedded software is hand coded using the model as specification.
  3. Similar to approach two but here the embedded software is automatically generated using a high quality code generator.

The driver for choosing approach is threefold; high quality, short development time and low cost. Some experiences based on these prerequisites are presented, mainly concerning the aspects of scalability, such as; model architecture, license model and project ramp-up challenges. The results are also compared to the existing SystemBuild based development environment. When introducing high-end engineering practices and tools such as Simulink in an organization developing safety-critical products, it is important to make sure that also basic management practices (e.g. Requirements-, Configuration- and Change Management) are thoroughly handled.

Keyword
Gripen, Simulink, MBD, SysML
National Category
Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-17940 (URN)
Available from: 2009-04-27 Created: 2009-04-27
5. Experience from introducing Unified Modeling Language/Systems Modeling Language at Saab Aerosystems
Open this publication in new window or tab >>Experience from introducing Unified Modeling Language/Systems Modeling Language at Saab Aerosystems
2010 (English)In: Systems Engineering, ISSN 1098-1241, E-ISSN 1520-6858, Vol. 13, no 4, 369-380 p.Article in journal (Refereed) Published
Abstract [en]

A Unified Modeling Language/Systems Modeling Language (UML/SysML) subset was the modeling notation selected for an aerospace systems engineering project at Saab Aerosystems. In this paper, the rationale for selecting UML/SysML is given, along with a description of the situation at the project planning stage regarding business conditions, method and tools support. The usage of use case, sequence, and activity diagrams are described as well as definition of functional chains with SysML. Furthermore, the connections to system implementation activities including code generation and simulation are discussed. The advantages and disadvantages of using UML/SysML from experience in an industrial context are reported.

It is also described how UML/SysML is related to industrial research projects in the Model Based Systems Engineering (MBSE) methods and tools area. Introducing UML/SysML with a methodology and a supporting toolset in an operative organization require a clear strategy, including planning, just-in-time training, and mentor support. Finally, industrial needs for further development of SysML are discussed.

Place, publisher, year, edition, pages
Wiley, 2010
Keyword
Systems Modeling Language, Unified Modeling Language, Model Based Systems Engineering, Unmanned Aerial Vehicle
National Category
Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-17941 (URN)10.1002/sys.20156 (DOI)000284008700005 ()
Available from: 2009-04-27 Created: 2009-04-27 Last updated: 2017-12-13Bibliographically approved

Open Access in DiVA

Aircraft Systems Modeling: Model Based Systems Engineering in Avionics Design and Aircraft Simulation(1021 kB)5141 downloads
File information
File name FULLTEXT02.pdfFile size 1021 kBChecksum SHA-512
26992b258855c53d0ae65e2a7890492c450412f8b37175b9b1a7b652da0098c536eaddf8763138171a04795425bd9592a19c75263cfe4063430d7a9433dabd68
Type fulltextMimetype application/pdf
cover(48 kB)147 downloads
File information
File name COVER01.pdfFile size 48 kBChecksum SHA-512
57902f1458ea87f1c37ead4d4d1c995cb94716e5e548228cb5da7cf34ead575b4cc4b5589e0897a42fa22bed5ad4c5403bde63fbfcf08400c7a3c2fa969ca0e0
Type coverMimetype application/pdf

Authority records BETA

Andersson, Henric

Search in DiVA

By author/editor
Andersson, Henric
By organisation
Machine Design The Institute of Technology
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
Total: 5146 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: 6079 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