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Theses

Aide à la décision pour l'intégration de la sécurité au plus tôt en phase de conception : approche innovante de reconception de machines agricoles

Abstract : The research presented in this thesis is positioned in the field of design for safety. This thesis is particularly interested in operationalizing the IRAD (Innovative Risk Assessment Design) method, which integrates safety systematically throughout the design process. For this purpose, in first step, we propose to formalize a type of experience feedback (accident reports) detailing the facts relating to the elements of a working situation and the events that led to an accident. In the next step, we propose two complementary approaches to redesign for safety: functional reverse engineering for safety (FRES) and functional re-engineering for safety (FR2ES). FRES is used to extract knowledge on both the accident and the design of the system involved in the accident. This approach allows assessing the safety level of the system by estimating a safety indicator depending on the type of identified risk. This indicator is used as a parameter for decision support during the redesign of the system. FR2ES defines the safety objectives related to each phase of the design in order to eliminate or reduce a given risk. The safest solutions are then obtained, on the one hand, by incorporating these safety objectives in the redesign process and, on the other hand, by using the safety indicator applied to the proposed solutions. Finally, the applicability of these approaches is demonstrated on two types of tractor-implement hitches: the power take off shaft and the three point hitch systems.
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Theses
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https://tel.archives-ouvertes.fr/tel-01151261
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Submitted on : Tuesday, May 12, 2015 - 4:15:09 PM
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  • HAL Id : tel-01151261, version 1

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Leyla Sadeghi. Aide à la décision pour l'intégration de la sécurité au plus tôt en phase de conception : approche innovante de reconception de machines agricoles. Automatique / Robotique. École normale supérieure de Cachan - ENS Cachan, 2014. Français. ⟨NNT : 2014DENS0031⟩. ⟨tel-01151261⟩

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