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Lightweight mechanical amplifiers for rolled dielectric elastomer actuators and their integration with bio-inspired wing flappers

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Lightweight mechanical amplifiers for rolled dielectric elastomer actuators and their integration with bio-inspired wing flappers
นักวิจัย : Lau, Gih-Keong , Lim, Hoong-Ta , Teo, Jing-Ying , Chin, Yao-Wei
คำค้น : DRNTU::Engineering::Mechanical engineering::Robots.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2557
อ้างอิง : Lau, G. K., Lim, H. T., Teo, J. Y., & Chin, Y. W. (2014). Lightweight mechanical amplifiers for rolled dielectric elastomer actuators and their integration with bio-inspired wing flappers. Smart Materials and Structures, 23(2), 025021. , http://hdl.handle.net/10220/18920 , http://dx.doi.org/10.1088/0964-1726/23/2/025021 , 176489
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Smart materials and structures
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Dielectric elastomer actuators (DEAs) are attractive for use in bio-inspired flapping-wing robots because they have high work density (specific energy) and can produce a large actuation strain. Although the active membrane of a dielectric elastomer is lightweight, the support structure that pre-tensions the elastomeric membrane is massive and it lowers the overall work density. If the DEA is to be used successfully to drive flapping-wing robots, its support structure must be as lightweight as possible. In this work, we designed, analysed, and developed a lightweight shell using a cross-ply laminate of carbon fibre reinforced polymer (CFRP) to pre-strain a rolled DEA. The CFRP shell was shown to weigh 24.3% of the total mass for the whole DEA assembly, while providing up to 35.0% axial pre-strain to a rolled DEA (BJB-5005 silicone rubber). This DEA assembly using the CFRP shell achieved 30.9% of the theoretical work density for a BJB-TC5005 membrane at 33.5 MV m−1. In comparison, spring rolls with a massive spring core were reported with overall work density merely 10–20% of the maximum value. Furthermore, this CFRP shell can amplify an axial DEA stroke into a larger transverse shell deformation. With these deformation characteristics, this CFRP shell and a rolled DEA were successfully integrated with an insect-inspired thoracic mechanism and they were shown to be feasible to drive it for a flapping wing.

บรรณานุกรม :
Lau, Gih-Keong , Lim, Hoong-Ta , Teo, Jing-Ying , Chin, Yao-Wei . (2557). Lightweight mechanical amplifiers for rolled dielectric elastomer actuators and their integration with bio-inspired wing flappers.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Lau, Gih-Keong , Lim, Hoong-Ta , Teo, Jing-Ying , Chin, Yao-Wei . 2557. "Lightweight mechanical amplifiers for rolled dielectric elastomer actuators and their integration with bio-inspired wing flappers".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Lau, Gih-Keong , Lim, Hoong-Ta , Teo, Jing-Ying , Chin, Yao-Wei . "Lightweight mechanical amplifiers for rolled dielectric elastomer actuators and their integration with bio-inspired wing flappers."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2557. Print.
Lau, Gih-Keong , Lim, Hoong-Ta , Teo, Jing-Ying , Chin, Yao-Wei . Lightweight mechanical amplifiers for rolled dielectric elastomer actuators and their integration with bio-inspired wing flappers. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2557.