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Modélisation et évaluation de la fiabilité des systèmes mécatroniques : application sur système embarqué

Abstract : Mechatronics is defined as the integration of mechanical engineering, electronics, computer control,... in the design and manufacture of increasingly innovative products. This approach must be accompanied today by the guarantee of dependability of the developed systems. However, reliability, one factor key defining the to the dependability, is not sufficiently evaluated in the development of mechatronic systems. We have developed a complete methodology in order to design and evaluate the reliability of mechatronic systems. Our methodology is a tool for decision-making at different stages of the development and life cycles for mechatronic systems, based on the estimation of theirs reliability. The reliability estimation at the stage of the product conception is done from the Stochastic and Déterministes Petri nets model of mechatronic systems which takes into account the functional modeling, the dysfunctional modeling (with the Failure Mode and Effects Analysis (FMEA) and the Fault Tree Analysis (FTA),...) and different reliability data bases for each component. The experimental and the operational reliability are determined using the Bayesian estimation method BRM, which takes into account the data, obtained during the tests and from the experience feedback. A sample application on the Anti-lock Brake System (ABS) illustrates this methodology for reliability estimation.
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Submitted on : Monday, March 29, 2010 - 4:12:42 PM
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  • HAL Id : tel-00467950, version 1

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Alin Gabriel Mihalache. Modélisation et évaluation de la fiabilité des systèmes mécatroniques : application sur système embarqué. Sciences de l'ingénieur [physics]. Université d'Angers, 2007. Français. ⟨tel-00467950⟩

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