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Dynamic electromechanical performance of viscoelastic dielectric elastomers
发布时间：2025-04-30
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- 发布时间：
- 2025-04-30
- 论文名称：
- Dynamic electromechanical performance of viscoelastic dielectric elastomers
- 发表刊物：
- 《Journal of Applied Physics》（中科院 3区）
- 摘要：
- Because of their viscoelasticity, dielectric elastomers (DEs) are able to produce a large time-dependent electromechanical deformation. In the current study, we use the Euler-Lagrange equation to characterize the influence of temperature, excitation frequency, and viscoelasticity on the dynamic electromechanical deformation and stability of viscoelastic dielectrics. We investigate the time-dependent dynamic performance, hysteresis, phase diagram, and Poincare map associated with the viscoelastic dissipative process. The results show that the dynamic response has strong temperature and frequency dependencies. It is observed that the natural frequency of the DE decreases with increasing temperature and the maximal amplitude increases at higher temperatures. At relative low frequencies, the amplitude is very small and the viscoelasticity has a significant effect on the oscillation of the system. Furthermore, the results show that the viscoelasticity has a relatively major influence on the dynamic performance for DEs that have very low relaxation times. (C) 2013 AIP Publishing LLC.
- 合写作者：
- Sheng, Junjie;Chen, Hualing;Liu, Lei;Zhang, Junshi;Wang, Yongquan;Jia, Shuhai
- 卷号：
- 114(13)
- 是否译文：
- 否
- 发表时间：
- 2013-10-08
