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TLM-Based Asynchronous Co-simulation with the Functional Mockup Interface
Linköping University, Department of Management and Engineering, Fluid and Mechatronic Systems. Linköping University, Faculty of Science & Engineering.
(Department of System Simulation and Concept Analysis, Saab Aeronautics)
(SKF Group Technology, AB SKF)
2017 (English)In: Proceedings of the IUTAM Symposium on Solver-Coupling and Co-Simulation, Darmstadt, Germany, September 18-20, 2017 / [ed] Bernhard Schweizer, Switzerland, 2017Conference paper, Published paper (Refereed)
Abstract [en]

Numerical stability is a key aspect in co-simulation of physical systems. Decoupling a system into independent sub-models will introduce time delays on interface variables. By utilizing physical time delays for decoupling, affecting the numerical stability can be avoided. This requires interpolation, to allow solvers to request input variables for the time slot where they are needed. The FMI for co-simulation standard does not support fine-grained interpolation using interpolation tables. Here, various modifications to the FMI standard are suggested for improved handling of interpolation. Mechanical and thermodynamic models are used to demonstrate the need for interpolation, as well as to provide an industrial context. It is shown that the suggested improvements are able to stabilize the otherwise unstable connections.

Place, publisher, year, edition, pages
Switzerland, 2017.
Series
IUTAM Bookseries, E-ISSN 1875-3493 ; 35
Keywords [en]
Co-simulation, FMI, TLM, Numerical stability
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:liu:diva-157342DOI: 10.1007/978-3-030-14883-6_2ISBN: 978-3-030-14882-9 (print)ISBN: 978-3-030-14883-6 (electronic)OAI: oai:DiVA.org:liu-157342DiVA, id: diva2:1321871
Conference
IUTAM Symposium on Solver-Coupling and Co-Simulation
Available from: 2019-06-10 Created: 2019-06-10 Last updated: 2019-06-10

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Braun, RobertFritzson, Dag

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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