The present invention generally relates to an adjustable anti-vortex contour wingtip device. The device comprises an open coffee cup-like structure body made of 2 way-shape memory alloy; an outer layer of SMA coaxially engaged with an outer side of structure body to be flat at higher temperature and circular at a lower temperature; an inner layer concentrically imposed to an inner side of structure body to be flat at lower temperature and circular at a higher layer; a conical helix strip of SMA fabricated to inner layer to decide direction of the vortex and to adjust strength with the help of pitch of conical helix; an insulator filled in between space of double-layered SMA to transmit force; a pair of Peltier modules placed between layers to provide higher and lower temperatures; and an additional layer connecting structure body and surface of a wing to make it smooth after transformation. 'Big tu
AN ADJUSTABLE ANTI-VORTEX CONTOUR WINGTIP DEVICE
2022-03-24
Patent
Electronic Resource
English
IPC: | B64C AEROPLANES , Flugzeuge |
NTIS | 1984
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