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SysML-Modelica Integration Working Group Report (SE DSIG meeting, Washington DC 3/24/2009)

SysML-Modelica Integration Working Group Report (SE DSIG meeting, Washington DC 3/24/2009). Chris Paredis Georgia Tech. Presentation Overview. Objectives, Focus, Scope Activities Current Status Summary. Modelica: Dynamic Systems Modeling. motor torque. WG Focus and Scope. Objective:

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SysML-Modelica Integration Working Group Report (SE DSIG meeting, Washington DC 3/24/2009)

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  1. SysML-Modelica IntegrationWorking Group Report(SE DSIG meeting, Washington DC 3/24/2009) Chris ParedisGeorgia Tech

  2. Presentation Overview • Objectives, Focus, Scope • Activities • Current Status • Summary

  3. Modelica: Dynamic Systems Modeling motor torque

  4. WG Focus and Scope • Objective: • Leverage the strengths of both SysML and Modelica by integrating them to create a more expressive and formal MBSE language. • Focus: • Reuse Modelica syntax by integrating Modelica into SysML • Scope: • Cover the Modelica constructs needed for the Modelica Standard Library to be used in SysML • Generate corresponding SysML constructs that fit within the profiling mechanism

  5. WG Activities • Face-to-face kick-off meeting • Linköping, Jan 12-14 • Fritzson, Paredis, Schamai • Weekly conference call • Wed, 10-11AM Eastern • Wiki • http://www.omg.org/members/sysml-rtf-wiki/doku.php?id=rtf2:groups:sysml_and_modelica_integration • Current Members • Roger Burkhart • Hans-Peter de Koning • Peter Fritzson • Sandy Friedenthal • Nerijus Jankevicius • Chris Paredis • Russell Peak • Nicolas Rouquette • Wladimir Schamai

  6. Current Status • Initial Mapping (from Linköping meeting) • Maps Modelica onto Blocks/BDD/IBD • Covers most commonly used Modelica constructs(rough guess: 70-80% of models) • Still requires further review by WG • Second proposed mapping • Similar but maps onto ConstraintBlocks/PAR • Both mappings require extensions of SysML semantics  at this point: not clear which mapping is best

  7. Overview of Draft Mapping Document(59-page working document)

  8. Simple Illustrative Example Blocks/BDD/IBD Modelica ConstraintBlocks/PAR Note:representsequationsnot structure

  9. Analysis Context • To describe the dynamic behavior, the structural components are related to corresponding dynamic model components in a «ModelicaModel» • A «Describe» stereotype (based on Dependency) is used to establish this relationship

  10. Summary • Objective: • Leverage the strengths of both SysML and Modelica by integrating them to create a more expressive and formal MBSE language. • Good start — still much work to be done • Future Directions: • Complete draft mapping document • Create reference implementation of mapping tool • Expect an update at the Costa Rica meeting…

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