Staff View: Parameters of cloud to cloud and intra-cloud lightning strikes to CFC and metallic aircraft structures

Parameters of cloud to cloud and intra-cloud lightning strikes to CFC and metallic aircraft structures

This paper presents for the first time an assessment of the impact of direct cloud–to-cloud (CC) and intra-cloud (IC) lightning flash on a commercial and a military aircraft. In contrast to cloud-to-ground (CG) lightning strikes to aircraft, where measurements of CG flash measurements may be exten...

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Main Authors:	Fisher, J., Hoole, P.R.P, Pirapaharan, K., Hoole, S.R.H.
Format:	Proceeding
Language:	English
Published:	IEEE 2017
Subjects:	TK Electrical engineering. Electronics Nuclear engineering
Online Access:	http://ir.unimas.my/id/eprint/15742/7/Parameters.pdf http://ir.unimas.my/id/eprint/15742/ http://ieeexplore.ieee.org/document/7803216/
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id	my.unimas.ir.15742
record_format	eprints
spelling	my.unimas.ir.157422022-06-15T07:22:58Z http://ir.unimas.my/id/eprint/15742/ Parameters of cloud to cloud and intra-cloud lightning strikes to CFC and metallic aircraft structures Fisher, J. Hoole, P.R.P Pirapaharan, K. Hoole, S.R.H. TK Electrical engineering. Electronics Nuclear engineering This paper presents for the first time an assessment of the impact of direct cloud–to-cloud (CC) and intra-cloud (IC) lightning flash on a commercial and a military aircraft. In contrast to cloud-to-ground (CG) lightning strikes to aircraft, where measurements of CG flash measurements may be extended to aircraft strikes, CC and IC flashes are not so accessible. The effects of CC and IC flashes differ from CG flash largely owing to the earth resistance present in CG flashes which imposes limits on the lightning return stroke. It applies the experimentally-attested transmission line model which was reviewed in a previous companion paper to assess the impact on metallic and carbon fiber composite (CFC) structures of modern aircraft. It compares the electrical impact of CC lightning flash on aircraft made of CFC and metallic structures. The simulations and analysis of voltages and the first return stroke current waveforms demonstrate the important distinctions in the characteristics of direct CC lightning effects on metallic and non-metallic airframes. Among the significant results observed are large differences in current time derivatives on the surface of the carbon fiber composites and metallic airframes. Further observations show that there are rise times for the voltage and currents which fall within the subnano and submicro seconds yielding large time derivatives for both the voltages and the currents. This can have important implications for the shielding and protection of the aircraft electrical and electronics systems. IEEE 2017 Proceeding PeerReviewed text en http://ir.unimas.my/id/eprint/15742/7/Parameters.pdf Fisher, J. and Hoole, P.R.P and Pirapaharan, K. and Hoole, S.R.H. (2017) Parameters of cloud to cloud and intra-cloud lightning strikes to CFC and metallic aircraft structures. In: 2016 International Symposium on Fundamentals of Electrical Engineering (ISFEE), 30 June 2016 - 02 July 2016, Bucharest, Romania. http://ieeexplore.ieee.org/document/7803216/ DOI: 10.1109/ISFEE.2016.7803216
institution	Universiti Malaysia Sarawak
building	Centre for Academic Information Services (CAIS)
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaysia Sarawak
content_source	UNIMAS Institutional Repository
url_provider	http://ir.unimas.my/
language	English
topic	TK Electrical engineering. Electronics Nuclear engineering
spellingShingle	TK Electrical engineering. Electronics Nuclear engineering Fisher, J. Hoole, P.R.P Pirapaharan, K. Hoole, S.R.H. Parameters of cloud to cloud and intra-cloud lightning strikes to CFC and metallic aircraft structures
description	This paper presents for the first time an assessment of the impact of direct cloud–to-cloud (CC) and intra-cloud (IC) lightning flash on a commercial and a military aircraft. In contrast to cloud-to-ground (CG) lightning strikes to aircraft, where measurements of CG flash measurements may be extended to aircraft strikes, CC and IC flashes are not so accessible. The effects of CC and IC flashes differ from CG flash largely owing to the earth resistance present in CG flashes which imposes limits on the lightning return stroke. It applies the experimentally-attested transmission line model which was reviewed in a previous companion paper to assess the impact on metallic and carbon fiber composite (CFC) structures of modern aircraft. It compares the electrical impact of CC lightning flash on aircraft made of CFC and metallic structures. The simulations and analysis of voltages and the first return stroke current waveforms demonstrate the important distinctions in the characteristics of direct CC lightning effects on metallic and non-metallic airframes. Among the significant results observed are large differences in current time derivatives on the surface of the carbon fiber composites and metallic airframes. Further observations show that there are rise times for the voltage and currents which fall within the subnano and submicro seconds yielding large time derivatives for both the voltages and the currents. This can have important implications for the shielding and protection of the aircraft electrical and electronics systems.
format	Proceeding
author	Fisher, J. Hoole, P.R.P Pirapaharan, K. Hoole, S.R.H.
author_facet	Fisher, J. Hoole, P.R.P Pirapaharan, K. Hoole, S.R.H.
author_sort	Fisher, J.
title	Parameters of cloud to cloud and intra-cloud lightning strikes to CFC and metallic aircraft structures
title_short	Parameters of cloud to cloud and intra-cloud lightning strikes to CFC and metallic aircraft structures
title_full	Parameters of cloud to cloud and intra-cloud lightning strikes to CFC and metallic aircraft structures
title_fullStr	Parameters of cloud to cloud and intra-cloud lightning strikes to CFC and metallic aircraft structures
title_full_unstemmed	Parameters of cloud to cloud and intra-cloud lightning strikes to CFC and metallic aircraft structures
title_sort	parameters of cloud to cloud and intra-cloud lightning strikes to cfc and metallic aircraft structures
publisher	IEEE
publishDate	2017
url	http://ir.unimas.my/id/eprint/15742/7/Parameters.pdf http://ir.unimas.my/id/eprint/15742/ http://ieeexplore.ieee.org/document/7803216/
_version_	1736838256868196352
score	13.211869

Parameters of cloud to cloud and intra-cloud lightning strikes to CFC and metallic aircraft structures

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