Novel ice protection system suitable for UAV composite wings

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dc.contributor.advisorJones, R. I.
dc.contributor.authorBhakta, Besant
dc.date.accessioned2023-01-05T13:44:02Z
dc.date.available2023-01-05T13:44:02Z
dc.date.issued2005-02
dc.description.abstractThe existence o f an atmospheric icing th re a t to a irc ra ft operating in moist, low altitudes at temperatures below freezing is well known. The objective o f this study was to develop an a irc ra ft ice protection system suitable fo r a UAV composite wing. Conventional wing leading edge ice protection systems were examined and found to either, necessitate significant electrical power, or were costly with respect to system mass. A low cost and low power technology capable o f protecting the UAV wing leading edge was identified. I t was proposed th a t a commercial magnetostrictive actuator fitte d to and in direct contact with the non-airflow wing surface would provide mechanical impulses to break the ice-wing surface bond. Assuming the accreted ice was o f a form expected o f te s t points in the FAR/ JAR Appendix C flight-icing envelope. Computational simulations demonstrated th a t pairs o f magnetostrictive actuators acting in unison a t a 0.3m span spacing, and deployed along the upper and lower wing leading edge surfaces a t around the 7% chord coordinate, would successfully break the ice-surface bond. I t was estimated th a t fo r a medium endurance UAV o f Predator B class, the proposed system power requirements is 500W at a 45kg total system mass. The proposed system would be more competitive than conventional systems if the use o f consumer grade electronics and control systems, harnessing etc. were permitted, together with the removal o f system redundancy and fail-safe provision requirements necessary fo r manned aircraft. Further work would require the demonstration o f a physical de-icing installation in the icing wind tunnel.en_UK
dc.description.coursenamePhDen_UK
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/18863
dc.language.isoenen_UK
dc.rights© Cranfield University, 2015. All rights reserved. No part of this publication may be reproduced without the written permission of the copyright holder.
dc.titleNovel ice protection system suitable for UAV composite wingsen_UK
dc.typeThesisen_UK

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