Correlation Between High-Level and Low-Level Transfer Functions of Induced Lightning Strike Testing

There are a variety of different tests which can be carried out
in order to evaluate the potential effects of a lightning event to
an aircraft. High-level current tests are generally useful for
assessing the actual damage on structures. One the other hand,
low-level tests are the common approach for establishing the
transfer functions of the external environment applied on the
component to the internal environment resulting on systems
provided that non-linear effects are not significant or are
controlled and compensated.
In this paper we compare the results obtained in a high level
lightning strike testing campaign with the results coming from
a low level direct current injection testing campaign both
carried out on the same aircraft hybrid cockpit (CFC/metal).
The tests results are complemented/compared with simulation
activities. Additionally, ad-hoc test set-up were manufactured
for each test campaigns and are analysed also in this paper.