Artificial Muscles from Fishing Line and Sewing Thread
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Machine scores (provisional)
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
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- Teacher spread
- 0.205 · how far apart the two teachers sit on this one work
- Validation status
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Abstract
The high cost of powerful, large-stroke, high-stress artificial muscles has combined with performance limitations such as low cycle life, hysteresis, and low efficiency to restrict applications. We demonstrated that inexpensive high-strength polymer fibers used for fishing line and sewing thread can be easily transformed by twist insertion to provide fast, scalable, nonhysteretic, long-life tensile and torsional muscles. Extreme twisting produces coiled muscles that can contract by 49%, lift loads over 100 times heavier than can human muscle of the same length and weight, and generate 5.3 kilowatts of mechanical work per kilogram of muscle weight, similar to that produced by a jet engine. Woven textiles that change porosity in response to temperature and actuating window shutters that could help conserve energy were also demonstrated. Large-stroke tensile actuation was theoretically and experimentally shown to result from torsional actuation.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
The record
- Venue
- Science
- Topic
- Advanced Materials and Mechanics
- Field
- Engineering
- Canadian institutions
- University of British Columbia
- Funders
- —
- Keywords
- Thread (computing)Artificial muscleUltimate tensile strengthMaterials scienceComposite materialStructural engineeringMechanical engineeringActuatorEngineeringElectrical engineering
- Has abstract in OpenAlex
- yes