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Communication Dans Un Congrès Année : 2010

Reconfiguration of over-actuated consecutive-k-out-of-n: F systems based on Bayesian Network Reliability model

Résumé

This paper presents a new approach based on reliability to reconfigure redundant actuators when failures occur. The aim is to preserve the health of the actuators and the availability of the system both in the nominal situation and in the presence of some unavailable actuators. This paper proposes a solution to control an over-actuated system that is structured as a typical consecutive-k-out-of-n: F system. In a degraded situation, this work proposes a reconfigured control allocation based on the on-line estimation of actuators reliability. The analytic solution proposed in the literature to compute the reliability of consecutive-k-out-of-n: F system is not appropriated to compute the reliability on-line. The graphical aspect of Bayesian Network is very interesting because it formalizes the model by coupling a generic model structure with simple parameter matrices and the inference computes the reliability of actuators according to on-line observations (evidences). It is applied on circular and linear typical consecutive-k-out-of-n: F system to estimate its reliability and provide the parameters to distribute the control efforts among the redundant set of actuators.
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Dates et versions

hal-00546113 , version 1 (13-12-2010)

Identifiants

  • HAL Id : hal-00546113 , version 1

Citer

Philippe Weber, Christophe Simon, Didier Theilliol. Reconfiguration of over-actuated consecutive-k-out-of-n: F systems based on Bayesian Network Reliability model. 8th European Workshop on Advanced Control and Diagnosis, ACD'10, Nov 2010, Ferrara, Italy. pp.CDROM. ⟨hal-00546113⟩
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