A BRIEF INVESTIGATION INTO THE EFFECTS UPON CURRENTS ON WIRES WHEN REPLACING ALUMINIUM ALLOY WITH TITANIUM ALLOY STRUCTURE IN A CFC SKINNED BOX CARRYING LIGHTNING CURRENTS

摘要

A series of computer model runs have been carried out to investigate the comparative effects on induced currents in cables routed adjacent to aluminium and titanium internal structure within a CFC (Carbon Fibre Composite) skin. Cables were considered in various positions relative to the metal structure, both across and at various heights above it. The investigation has found that the current in the wires increases significantly for the titanium structure, with the peak current magnitude between 2 and 10 times that found with an aluminium structure, and the current integral increasing by a significant amount.