Lightning Currents on Fastening Assemblies of an Aircraft Fuel Tank—Part III: Validation of the Current Assessment Method With Measurement - Université de Limoges Accéder directement au contenu
Article Dans Une Revue IEEE Transactions on Electromagnetic Compatibility Année : 2020

Lightning Currents on Fastening Assemblies of an Aircraft Fuel Tank—Part III: Validation of the Current Assessment Method With Measurement

Paul Monferran
  • Fonction : Auteur
Christophe Guiffaut
Alain Reineix
Fabian Fustin
  • Fonction : Auteur
Fabrice Tristant
  • Fonction : Auteur

Résumé

This paper proposes a validation of the lightning current assessment method in the aircraft assemblies proposed in the previous parts. In particular, it concerns the FDTD fastener modeling for which the variability of its primary parameter has to be taken into account. The principle is to merge an electromagnetic fastener model with an uncertainty model. The fastener model proposed in this paper is an improvement of the model of part I; a wire with a lumped resistor on a low conductive plate. This model is able to ensure a good shielding efficiency without current distribution disruptions provided that the conductivity of the plate is weak in contrast to the lumped resistor. This model has the benefits to be able to represent any fastener without location constraint in the FDTD grid. A log-normal distribution has been previously established as uncertainty model which represents the variability of the resistive parameter. The fastener model is included in the FDTD modeling of a realistic fuel tank with each lumped resistor taking a probabilistic value according to the log-normal law. To take into account the variability of resistors, several simulations with different sets of resistance values are performed. The aim is to surround current measurements with simulated currents at various location of the fuel tank. Lightning current is directly injected on a fastener in simulation as in measurement. This paper demonstrates that a specific attention must be given to the modeling of this fastener for the current assessment close to the lightning injection. Moreover, the results highlight the relevance of the use of an uncertainty model and its reliability for the lightning current assessment.
Fichier principal
Vignette du fichier
partIII_V2.pdf (8.95 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03012348 , version 1 (27-11-2020)

Identifiants

Citer

Paul Monferran, Christophe Guiffaut, Alain Reineix, Fabian Fustin, Fabrice Tristant. Lightning Currents on Fastening Assemblies of an Aircraft Fuel Tank—Part III: Validation of the Current Assessment Method With Measurement. IEEE Transactions on Electromagnetic Compatibility, 2020, 62 (5), pp.2174-2185. ⟨10.1109/TEMC.2020.2965642⟩. ⟨hal-03012348⟩
78 Consultations
42 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More