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Supercoiling Techniques

Supercoiling is understood as a branch of Topology, as part of Knot Theory and its subfield of Ribbon Theory (All rich tradition, including the famous Mock Turtle.). Supercoiling is a biomimetic solution to storing long strings in a small volume, and a classic method for storing elastic energy. DNA supercoils compactly thousands of times smaller than its length, as just one bio-supercoiling example. The child's rubber-band motor airplane uses supercoiled rubber to store and release elastic energy for flight.

Supercoiling is a simple basis for flexible AWE transmissions. An elastomer line stretched across two points can accept chaotic rotating input on one side and output smooth shaft power, doing the job of a massive flywheel. As noted in recent posts, a airborne supercoiling elastomer in rubber-band-motor mode can be driven by multirotors as a AWECS, without massive driveshafts. Note the historic power of twisted rope in siege catapults and in the "Spanish Windlass". Supercoiling extends the operational range of twisted rope devices. Elastomer ropes in the form of modern bungees offer a high supercoiling-under-load cycle life, whereas ordinary rope is damaged by a single hockle. One can supercoil line without damage by staying below strain and abrasion limits.

Thus we have two great supercoiling concepts to play with; compact line storage or slack prevention to obviate reels, and twisted elastomers for buffered power transmission.

CoolIP                       ~Dave Santos                 9Nov2011               AWE4708

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