EPFL's drone innovation uses passive wing morphing for crash-landing on trees and poles, enhancing the scope of industrial inspections.
Researchers have devised an innovative advancement in drone technology that uses passive wing morphing to achieve crash-landing on trees and vertical poles.
The team believes that such drones will enable close inspections in industrial settings and tall buildings, avoiding scaffolding and risky human interventions.Due to their high endurance, unmanned aerial vehicles excel in long-distance missions such as delivery, mapping, and search and rescue. Annotated diagram of PercHug: Perching steps with impact forces, Isometric view of components, Side view with physical properties, Pre-loaded segmented wings, Hooks on outer wing segment, Latching wing release, Backup bistable trigger.
Using an “upturned nose” for reorientation and foldable wings for wrapping, PercHug avoids additional structures, reducing complexity. It features an unlatching mechanism, a bistable trigger, foldable wings with hooks, and a reinforced tail for stability and resting.In the experiments, PercHug was hand-launched against six trees, both with and without an extended elastic nose. Successful perching involves four steps: gliding, reorienting, wrapping wings, and maintaining perch.
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