期刊
IEEE-ASME TRANSACTIONS ON MECHATRONICS
卷 24, 期 1, 页码 120-131出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMECH.2018.2874067
关键词
Multimaterial soft robot; rehabilitation; soft gripper; three-dimensional (3-D) printing; topology optimization
类别
资金
- National University of Singapore
Multimaterial soft robots, composing of integrated soft actuators and a relatively harder body, show great potential to exert higher payloads and support their own weights. This paper proposed a systemic framework to automatically design and fabricate this kind of robots. The multimaterial design problem is mathematically modeled under the framework of topology optimization in which the structure and material distribution are obtained simultaneously. Herein, a multimaterial pneumatic soft finger, modeled as a compliant mechanism, is optimized to achieve its maximal bending deflection and further customized to practical applications on grippers, rehabilitation, and an artificial hand. These optimized multimaterial soft fingers are fabricated by combining molding and three-dimensional printing technique. Experimental results show that the soft gripper can manipulate a large variety of objects with different shapes (from M4 screws to complicated sunglasses) and weights (up to 168 g), the rehabilitation finger can facilitate human safely in two modes, and the artificial hand can perform various gestures. This paper represents an important step toward the realm of high-performance soft robots.
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