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Mixed-mode integration for real-time simulation

Title data

Schiela, Anton ; Olsson, Hans:
Mixed-mode integration for real-time simulation.
In: Papers of the Modelica Workshop 2000. - Linköping, Sweden : Modelica Association , 2000 . - pp. 69-75

Official URL: Volltext

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Project information

Project title:
Project's official titleProject's id
IST Project "Real-time simulation for design of multi-physics systems" (RealSim) with "Deutsches Zentrum für Luft- und Raumfahrt e. V." (DLR) and Dynasim ABIST-199-11979

Project financing: European Commission, 5th Framework Programme (FP5), Information Society Technologies Programme (IST) for Research, Technological Development and Demonstration on a "User-friendly information society"

Abstract in another language

The new possibilities of multi-domain hierarchical modelling often lead to models with both fast and slow parts. In this paper a new approach to simulate such systems is discussed that is especially useful in real-time applications. Mixed-mode integration represents a middle course between implicit and explicit integration. The main idea is to split up the system into a fast and a slow part and to apply implicit discretization only to the fast part. The partitioning of the system can be performed offline using a newly developed automatic selection routine, before real-time simulation starts. Mixed-mode integration was applied to several Modelica models from different fields, e.g. models of a diesel engine and an industrial robot and tested using Dymola. Speedup factors from about 4-16 were recorded. In this paper, mixed-mode integration is introduced, the selection routine is described and numerical results are presented.

Further data

Item Type: Article in a book
Refereed: No
Additional notes: Dymola Users' Group Meeting
Keywords: multi-domain hierarchical modelling; mixed-mode integration; Modelica standard library
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Mathematics > Chair Mathematics V (Applied Mathematics)
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Mathematics > Professorship Applied Mathematics (Applied Mathematics) > Professorship Applied Mathematics (Applied Mathematics) - Univ.-Prof. Dr. Anton Schiela
Profile Fields > Advanced Fields > Nonlinear Dynamics
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Mathematics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Mathematics > Professorship Applied Mathematics (Applied Mathematics)
Profile Fields
Profile Fields > Advanced Fields
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 510 Mathematics
Date Deposited: 29 May 2015 08:10
Last Modified: 29 May 2015 08:10
URI: https://eref.uni-bayreuth.de/id/eprint/11855