Conference article

Guidelines for modeling hydraulic components and model based diagnostics of hydraulic applications

Sebastian Adén
Linköping University, Department of Management and Engineering, Linköping, Sweden

Kenny Stjernström
Combitech AB- Technical Information Solutions, Linköping, Sweden

Download articlehttp://dx.doi.org/10.3384/ecp1392a39

Published in: 13th Scandinavian International Conference on Fluid Power; June 3-5; 2013; Linköping; Sweden

Linköping Electronic Conference Proceedings 92:39, p. 399-408

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Published: 2013-09-09

ISBN: 978-91-7519-572-8

ISSN: 1650-3686 (print), 1650-3740 (online)

Abstract

Model based diagnosis is a very hot topic right now in the world of system engineering; through RODON the user is provided with the necessary tools to accomplish this. With this software one can model a hydraulic system and auto-generate fmea (failure-mode-effect-analysis). The old fashioned way for solving this procedure is with pen and paper and that’s a very time-demanding activity. In addition to previous attributes of traditional failure-mode-effect-analysis: The complexity-grade is increasing fast in large machinery. Due to the origin of the paper; i.e. as a product of a master thesis; a huge effort has been put in to understand how RODON works; and how hydraulics best should be modeled to provide the user with as much information and accuracy as possible

Keywords

System; modeling; auto-generated fmea; diagnostics; non-causal interface

References

[1] National Aeronautics and Space Administration (NASA); 2007; NASA Systems Engineering Handbook; Tech.Rep; http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20080008301_2008008500.pdf

[2] Peter Bunus; Olle Isaksson; Beate Frey; Burkhard Munker (2009); RODON- A Model-Based Diagnosis Approach for the DX Diagnostic Competition; Uptime Solutions AB.

[3] The Modelica Association (2007). Modelica- a unified object-oriented language for physical systems modeling

[4] Mattias Nyberg; Erik Frisk; 2012; Model Based Diagnosis of Technical Processes

[5] Lamb; J.D.; Woodall; D.R. Asher; G.M (1997c); Bond graphs ii: Causality and singularity

[6] Johan de Kleer and James Kurien (2003). Fundamentals of Model-Based Diagnosis. In Proceedings of IFAC SafeProcess; Washington USA; June 2003

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