Dielectric oil-based polymer actuator for improved thickness strain and breakdown voltage

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• 作者：Minsung Cho ; Akio Yamamoto
• 关键词：Dielectric elastomer actuator ; Dielectric liquid layer ; Pull ; in instability ; Polymers
• 刊名：Journal of Mechanical Science and Technology
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：30
• 期：9
• 页码：4285-4290
• 全文大小：1,179 KB
• 刊物类别：Engineering
• 刊物主题：Mechanical Engineering
  Structural Mechanics
  Control Engineering
  Industrial and Production Engineering
  
• 出版者：The Korean Society of Mechanical Engineers
• ISSN：1976-3824
• 卷排序：30

文摘

Dielectric elastomer actuators (DEAs) have been increasingly investigated as alternative actuators to conventional ones. However, DEAs suffer from high rates of premature failure. Therefore, this study proposes a dielectric oil-based polymer actuator, also called a Dielectric liquid actuator (DLA), to compensate for the drawbacks of DEAs. DLA was experimentally compared with conventional DEAs. Results showed that DLA successfully prevented thermal runaway at defects in the electrode and excessive thinning of the film, resulting in increased breakdown voltage. Consequently, premature failure was inhibited, and the performance was improved. The breakdown voltages of DLA and DEA were 6000 and 2000 V, respectively, and their maximum thickness strains were 49.5% and 37.5%, respectively.