To enable failure simulation as a substitute of testing on real machinery for validation of functional safety; typical hydraulic failures are added to safety-related components of an in-house Modelica hydraulics library. This library is then used for the verification and validation of functional safety of a hydraulic test bench. Moreover; error propagation is considered.
Keywords: Functional safety; hydraulics; simulation; failure modeling
Proceedings of the 10th International Modelica Conference; March 10-12; 2014; Lund; Sweden
 ISO 13849-1: Safety of machinery-safety-related parts of control systems - Part 1: General principles for design. International Organization for Standardization (ISO), 2006.
 ISO 13849-2: Safety of machinery-safety-related parts of control systems - Part 2: Validation. International Organization for Standardization (ISO), 2010.
 Bertsche B. Reliability in Automotive and Mechanical Engineering. VDI-Buch, Springer-Verlag Berlin Heidelberg, 2008.
 Barg J., Eisenhut-Fuchsberger F., Orth A. 10 steps to peformance level - Handbook for the implementation of functional safety according to ISO 13849, 2012, Bosch Rexroth AG
 Sierla S., Tumer I., Papakonstantinou N., Koskinen K., Jensen D. Early integration of safety to the mechatronic system design process by the functional failure indentification and propagation framework. In: Mechatronics, Volume 22, 2012.
 Belmonte F., Sch√∂n W., Heurley L., Capel R. Interdisciplinary safety analysis of complex sociotechnological systems based on the functional resonance accident model: An application to railway traffic supervision. In: Reliability Engineering and System Safety, Volume 96, 2010.
 Deng A., Britton G., Tor S. Constraint-based functional design verification for conceptual design. In: Computer-Aided Design, Volume 32, 2000.
 David P., Idasiak V., Kratz F. Reliability study of complex physical systems using SysML. In:Reliability Engineering and System Safety, Volume 95, 2009.
 Schamai W., Fritzson P., Paredis, C., Pop A. Towards unified system modeling and simulation with ModelicaML: modeling of executable behavior using graphical notations, In: Proceedings 7th Modelica Conference, Como, Italy, 2009.
 Athanasatos P., Costopoulos T. Proactive fault finding in a 4/3-way direction control valve of a high pressure hydraulic system using the bond graph method with digital simulation, In: Mechanism and Machine Theory, Volume 50, 2012.