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An Open-Source Framework for Efficient Co-simulation of Fluid Power Systems
Linköping University, Department of Management and Engineering, Fluid and Mechatronic Systems. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-7480-1922
Linköping University, Department of Computer and Information Science. Linköping University, Faculty of Science & Engineering. (PELAB - Programming Environment Lab)
Linköping University, Department of Computer and Information Science, Software and Systems. Linköping University, Faculty of Science & Engineering. (PELAB - Programming Environment Lab)
SKF Group Technology, AB SKF.
2017 (English)Conference paper, Oral presentation only (Other academic)
Abstract [en]

Simulation of fluid power systems typically requires models from multiple disciplines.Achieving accurate load dynamics for a system with complex geometry, for example, mayrequire both a 1D model of the hydraulic circuit and a 3D multi-body model. However, mostsimulation tools are limited to a single discipline. A solution to these kinds of problems isco-simulation, where different tools are coupled and simulated together. Co-simulation canprovide increased accuracy, improved modularity and facilitated collaboration between dif-ferent organizations. Unfortunately, tool coupling typically requires tedious and error-pronemanual work. It may also introduce numerical problems. For these reasons, co-simulation isoften avoided as long as possible. These problems have been addressed by the developmentof an open-source framework for asynchronous co-simulation. Simulation tools can be inter-connected through a stand-alone master simulation tool. An extensive range of tools is alsosupported via the Functional Mockup Interface standard. A graphical user interface has beenimplemented in the OpenModelica Connection Editor. System models can be created andedited from both a schematic view and a 3D view. Numerical robustness is enforced by theuse of transmission line modelling. A minimalistic programming interface consisting of onlytwo functions is used. An example model consisting of a hydraulic crane with two arms, twoactuators and a hanging load is used to verify the framework. The composite model consistsof nine multi-body models, one hydraulic system model and a controller. It is shown thatmodels from various simulation tools can be replaced with a minimal amount of user input.

Place, publisher, year, edition, pages
2017.
Keyword [en]
Co-simulation, system simulation, multi-body simulation, transmission line modelling
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:liu:diva-142458OAI: oai:DiVA.org:liu-142458DiVA: diva2:1153513
Conference
The 15th Scandinavian International Conference on Fluid Power, SICFP’17
Projects
OpenCPS
Available from: 2017-10-30 Created: 2017-10-30 Last updated: 2017-11-14

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fulltext(456 kB)2 downloads
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Braun, RobertAsghar, AdeelPop, AdrianFritzson, Dag
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CiteExportLink to record
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Citation style
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