RoboticFin
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Researchers creating flexible fin to make AUVs more agile
If a wave of déjà vu just hit you like a ton of bricks, fret not, as this most certainly isn't the first (or second) time we've heard of researchers looking to the seas to create more intelligent / nimble submersibles. Apparently, a few more folks have gotten involved, as gurus from Drexel, MIT, Harvard and George Washington are now collaborating to develop a "fish-like fin to make autonomous underwater vehicles (AUVs) more agile." Apparently, the current iteration has improved on prior versions by eliminating drag during part of the "cut and sweep" motion. The general idea is to combine several of the fins in order to "allow robotic submarines to hover and turn on a dime as natural swimmers can," but it'll still be quite some time before devices such as this one can overcome ocean currents and ill-willed sea creatures.
MIT gurus developing mechanical fin for autonomous submarine
While we've already witnessed robotic submersibles take on fish-like sensing abilities, a team at MIT is hoping to equip autonomous underwater vehicles (AUVs) with a mechanical fin in order to nix the necessity of a propeller. In essence, the crew is looking to "create a more maneuverable, propeller-less underwater robot better suited for military tasks such as sweeping mines and inspecting harbors," and they are taking a note from the bluegill sunfish to make it happen. This particular creature sports a "distinctive swimming motion which results in a constant forward thrust with no backward drag," making it the ideal candidate to replicate. Current prototypes are being constructed with a "thin, flexible material that conducts electricity," and while we've no idea when the gurus plan on cranking out a finalized version, they've already got plans to study other aspects of the sunfish's movement in order to better design the bots.[Via Physorg]
