A compact and flexible actuator based on shape memory alloy springs

作者: K Yang , C L Gu

DOI: 10.1243/09544062JMES981

关键词:

摘要: A new structure of compact flexible actuator based on shape memory alloy (SMA) springs is presented. Three SMA springs, which are trained to shrink as the phase transition occurs, embedded off-axially and movably in a silicone rubber rod solidified at room temperature. The spatial bending, accomplished through heating by suitable current, could restore flexibly soon stopped. Thus, compact, flexible, integrative built. Being possessed merits such high load—weight ratio, low energy dissipation, direct driving, actuators can implement simple drive, precise operation, movement. On basis analysis an elastic with distributed concentrated loads, design investigated. Subsequently, manufacture prototype carried out control system implemented. Finally, experiments validate virtues actuators.

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