Datum objave: 20.07.2011

Kategorija: Aktualno na Univerzi

Partnership request description:  FP7 - AAT - 2012 - RTD-1 AAT.2012.3.3-2. Systems and equipment Wide composite structures application is the nearest future of aircraft design. Beside well-known advantages, composites create some new specific problems. Lightning strike protection of composite airframe is one of them. Since composite conductivity is pretty low, conventional approach to lightning strike protection is embedding of conductive materials (coatings, foils, extended foils etc. mostly aluminum) into upper layer of composite panels. Despite some progress in this field, such approach has generally “passive” nature – all composite surfaces must be protected, since nobody can predict lightning strike exact points. The main idea of this project is to change general approach and follow to “active” lightning strike protection philosophy. This means to organize controlled distortion of electric field around composite aircraft with the points of maximum field strength in the areas of the most probable lightning strikes. Due to basic physical laws, these points would be, on one hand, the points of lightning attraction (lightning input), and, on another, can be electrically connected with specific points for lightning energy output on the rear part of the aircraft. Sure, both points must be conductors, but not distorting basic aircraft geometry (“invisible lightning rod”). Electric field distortion can be created in the following way: high-voltage discharge of opposite polarity applied to specific device (active diverter) would create streamer/leader to the direction of max electric field intensity around the aircraft (potential lightning strike direction). System of active diverters would be located in different aircraft zones (mostly A1) and connected by cable. Sure, advanced system of electric field sensing to be created, as also control system to generate discharges in appropriate moments and places. Active approach can sufficiently increase lightning strike safety of composite-made aircrafts and, possibly, give sufficient weight economy since conductive layers of composite structures would be sufficiently less in square and weight.
Project proposer:   Lina Smovziuk (Ukraine)
Description of the project offered:   Transport, Aerospace technology, Materials technology, Nanotechnology and Nanosciences, Space and satellite research, Education. Trainin
Partner role:  Project coordinator
Partner organisation:  Education
Call for proposal title:  N/A

Description of the collaboration sought: We are open for collaboration with partnes who are interested in ALSYS project general idea and participation in the following workpackages: 1. Basic parameters of Active Lightning Strike Protection System definition. 2. System basic design: Electric field sensing sub-system; High-voltage power sub-system; Control system; Active lightning diverter. 3. Proof-of-concept system version manufacturing and integration. 4.On ground comparative lightning tests. Detailed project plan will be developed based on the interested organisations skills and facilities. If you are interested, please, contact Mr. Igor Rybalchenko (tel.               +38 057 719-0473        +38 057 719-0473; e-mail: iar@khai.edu).
Expertise sought: Industrial manufacture, Transport, Aerospace technology, Materials technology,
Roles sought: Project participant,
Organisation types sought:
Countries sought: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, United Kingdom, Albania, Bosnia-Herzegovina, Croatia, Iceland, Israel, Liechtenstein, Macedonia, Montenegro, Norway, Serbia, Switzerland, Turkey,