Abstract
The aim of this contribution is to design and test the lightning protection of an aircraft radome exposed to direct lightning strikes. The influencing parameters are investigated on different radome wall samples equipped with solid and segmented diverter strips. The effectiveness of the lightning interception and protection measures is tested with different high-voltage waveforms and representative high-current pulses. The tests show that reliable radome lightning protection can be achieved by an optimized arrangement of solid and segmented diverter strips, even if the aircraft radome has a huge size, with dimensions up to several meters.
Highlights
Lightning starts with processes in which charges inside the thundercloud are separated and rearranged
The tests show that reliable radome lightning protection can be achieved by an optimized arrangement of solid and segmented diverter strips, even if the aircraft radome has a huge size, with dimensions up to several meters
The are investigations con-design for the lightning protection of the aircraft sitcom radome under consideration
Summary
Lightning starts with processes in which charges inside the thundercloud are separated and rearranged. Due to these processes, the negative and positive charges are accumulated in a lower negative and a higher positive charge center. A cloud flash or cloud-to-cloud-lightning occurs whenever the leader terminates at the inverse charge center of a neighboring thundercloud [1,2]. The first current component is always produced by a return stroke process. This component is a strong impulsive current which lasts typically several hundreds of microseconds and has a peak value ranging from several tens up to more than a hundred kiloamps. The first return stroke may be followed by a series of subsequent return strokes and each of them may be followed by a continuing current [1,2,3,4]
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