HIRF Protection Design And Optimization For Nacelle Area Of The Aircraft

Abstract

With the application of composite materials (Carbon Fibre Composite and Metallic Mesh) on aircraft nacelles, A good HIRF protection design for the Fan Cowl can effectively reduce the induced current of the cables inside the nacelle in the HIRF environment. Fan Cowl of the nacelle should be multi-point electrically bonded to structure at the top and the bottom, to reduce the coupling of external HIRF fields on the internal cables. The specific nacelle design solution should be confirmed and improved through simulation and analysis in the early stages of design to achieve better HIRF protection for the sensitive electronic equipment installed inside it.