详情

In-flight Lightning Strike Damage Assessment System

项目名称：	In-flight Lightning Strike Damage Assessment System
摘要：	Commercial passenger aircraft are on average struck by lightning once a year. The effects of lightning on aircraft and helicopters are minimal for low-amplitude strikes, but higher-amplitude strikes may result in expensive delays and important repair and maintenance. The present certification threat level is derived from cloud-to-ground lightning strike data measured on instrumented towers. While historically this threat definition has served the purpose of lightning protection adequately on metallic airframes, modern aircraft incorporate an increasing amount of composite materials that make them more susceptible to damage. Moreover, aircraft now employ more high-authority electronic control systems that are susceptible to upset and damage. As a result of the introduction of extra protection measures the advantages of modern materials could be cancelled by the addition of weight and higher cost. To be able to design appropriate lightning protection, fixed-wing aircraft and helicopter manufacturers have a strong need for a good definition of the threat that lightning poses to aircraft. The first objective of the ILDAS research project is to develop and validate a concept prototype of an ILDAS, capable of in-flight measurement of the properties of actual lightning strikes. Such a system gives better knowledge of the actual effects of a lightning strike to a fixed-wing aircraft or a helicopter, which can be used to improve aircraft design. Based on the actual measured properties of a lightning strike, the second objective is to enable the development of tailored and efficient maintenance inspection procedures which must be applied after a recorded strike.
状态：	Active
资金：	0.00
资助组织：	Aeronautics and Space - Priority Thematic Area 4 (PTA4)
项目负责人：	Zwemmer, Rob
开始时间：	20061001
实际结束时间：	20090331
主题领域：	Aviation；Safety and Human Factors