期刊
EPL
卷 108, 期 5, 页码 -出版社
EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY
DOI: 10.1209/0295-5075/108/57002
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资金
- Doctoral Fund of the Ministry of Education of China [20120201110030]
- Foundation for Innovative Research Groups of the National Natural Science Foundation of China [11321062]
- China Scholarship Council
Deformation in charge-controlled dielectric elastomer actuation eliminates pull-in instability, but the performance is affected by dissipative characteristics, such as viscoelasticity and leakage current. This letter focuses on the modeling of the dissipative performance in charge-controlled dielectric elastomer actuation. The effects of the initial surface charge and the ratios between viscoelastic relaxation time and resistor-capacitor time constant are investigated. By spraying charge to compensate the leakage and adjusting the surface charge, the viscoelastic relaxation is dispelled and the invariable deformation is tuned. The rate of spraying charge to suppress viscoelastic creep is determined by the difference between the value of the leakage current and the rate of the change of the surface charge. Copyright (C) EPLA, 2014
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