Artificial Muscles from Fishing Line and Sewing Thread
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Dosyalar
Tarih
2014
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Amer Assoc Advancement Science
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
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.
Açıklama
Anahtar Kelimeler
Polymers, Memory, Shape, Actuators, Nanocomposites, Performance, Elastomers, Hybrid
Kaynak
Science
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
343
Sayı
6173
