Morphing thickness in airfoils using pneumatic flexible tubes and kirigami honeycomb

Jian Sun, Fabrizio Scarpa*, Jinsong Leng

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

Abstract

The work describes, a concept to morph the thickness of airfoils using a combination of Pneumatic Flexible Tubes (PFTs) within a Kirigami honeycomb configuration representing the wingbox structure. The configuration of the honeycomb/inflatable tube structure is composed by a pair of flexible tubes sandwiched between two custom honeycomb layouts. At zero input pressure the tube assumes a sinusoidal shape, which is reduced to a straight configuration and increase of the airfoil thickness when pressure is applied. An analytical model is developed to consider the actuation authority and thickness change provided by the system proposed. The results are benchmarked against experimental tests carried out on a reduced-scale demonstrator.

Original languageEnglish
Title of host publicationICAST 2014 - 25th International Conference on Adaptive Structures and Technologies
PublisherInternational Conference on Adaptive Structures and Technologies
Publication statusPublished - 1 Jan 2014
Event25th International Conference on Adaptive Structures and Technologies, ICAST 2014 - The Hague, United Kingdom
Duration: 6 Oct 20148 Oct 2014

Conference

Conference25th International Conference on Adaptive Structures and Technologies, ICAST 2014
CountryUnited Kingdom
CityThe Hague
Period6/10/148/10/14

Keywords

  • Inflatable structure
  • Modelling
  • Morphing airfoil

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