PHYSICS OF LIGHTNING-AIRCRAFT INTERACTION
نویسندگان
چکیده
منابع مشابه
The Interaction of Lightning with Aircraft and the Challenges of Lightning Testing
Aircraft are struck by lightning in flight with some regularity and are required to have demonstrated protection against this threat; much of this demonstration is provided by simulating in test the effects of lightning on aircraft structures, components and systems. Clearly these tests need to be carried out in a representative manner and guidance on how to do this is provided in the Aerospace...
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An overview of the physics of cloud-to-ground lightning is given, including its initiation, propagation, and attachment to ground. Discharges artificially initiated (triggered) from natural thunderclouds using the rocket-and-wire technique are discussed with a view toward studying properties of natural lightning. Both conventional and runaway breakdown mechanisms of lightning initiation in thun...
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Past and recent observations indicate the presence of lightning at altitudes in excess of 30 kin. The phenomenon is manifested as a high altitude optical flash, correlated with the presence of giant thunderstorms in the atmosphere below. This letter presents the first physical model of the process. The model is based on low frequency RF breakdown of the upper atmosphere, ignited by the upward p...
متن کاملStudy of Effects of Lightning Strikes to an Aircraft
In-flight statistics show that most strikes occurred 3-5 km above sea level, where the temperature is ~ 0C (Uman & Rakov, 2003; Larsson, 2002). There are two different types of lightning strikes to aircraft. The first type is that the aircraft initiates the lightning discharge when it is found in the intense electric field region of a thundercloud, and the second is the interception by the air...
متن کاملIndirect Effects of Lightning on Aircraft and Rotorcraft
This article discusses issues related to indirect lightning on aircraft/rotorcraft. The standard waveforms used for qualifying the vulnerability of a system are introduced, with their frequency spectrum. The identification of the elementary EM coupling phenomenon allows the understanding of the key drivers of the current distribution and field scattering on a complex structure. The system level...
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ژورنال
عنوان ژورنال: Journal of Atmospheric Electricity
سال: 1992
ISSN: 0919-2050
DOI: 10.1541/jae.12.107