Dynamic Electromechanical Response of a Viscoelastic Dielectric Elastomer under Cycle Electric Loads
Dielectric elastomer (DE) is able to produce large electromechanical deformation which is time-dependent due to the viscoelasticity. In the current study, a thermodynamic model is set up to characterize the influence of viscoelasticity on the electromechanical and dynamic response of a viscoelastic...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | International Journal of Polymer Science |
| Online Access: | http://dx.doi.org/10.1155/2018/2803631 |
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| author | Junjie Sheng Yuqing Zhang |
| author_facet | Junjie Sheng Yuqing Zhang |
| author_sort | Junjie Sheng |
| collection | DOAJ |
| description | Dielectric elastomer (DE) is able to produce large electromechanical deformation which is time-dependent due to the viscoelasticity. In the current study, a thermodynamic model is set up to characterize the influence of viscoelasticity on the electromechanical and dynamic response of a viscoelastic DE. The time-dependent dynamic deformation, the hysteresis, and the dynamic stability undergoing viscoelastic dissipative processes are investigated. The results show that the electromechanical stability has strong frequency dependence; the viscoelastic DE can attain a larger stretch in the dynamic response than the quasistatic actuation. Furthermore, with the decreasing frequency of the applied electric load, the viscoelastic DE system will present dynamic stability evolution from an aperiodic motion to the quasiperiodic motion. The DE system may also experience a stability evolution from a single cycle motion to multicycle motion with the increasing relaxation times. The value and variation trend of the amplitude of the stretch are highly dependent on the excitation frequency and the relaxation time. |
| format | Article |
| id | doaj-art-2e634c268c2247b5a2ad9227923146f9 |
| institution | Kabale University |
| issn | 1687-9422 1687-9430 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Polymer Science |
| spelling | doaj-art-2e634c268c2247b5a2ad9227923146f92025-02-03T01:11:30ZengWileyInternational Journal of Polymer Science1687-94221687-94302018-01-01201810.1155/2018/28036312803631Dynamic Electromechanical Response of a Viscoelastic Dielectric Elastomer under Cycle Electric LoadsJunjie Sheng0Yuqing Zhang1Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang 621999, ChinaInstitute of Systems Engineering, China Academy of Engineering Physics, Mianyang 621999, ChinaDielectric elastomer (DE) is able to produce large electromechanical deformation which is time-dependent due to the viscoelasticity. In the current study, a thermodynamic model is set up to characterize the influence of viscoelasticity on the electromechanical and dynamic response of a viscoelastic DE. The time-dependent dynamic deformation, the hysteresis, and the dynamic stability undergoing viscoelastic dissipative processes are investigated. The results show that the electromechanical stability has strong frequency dependence; the viscoelastic DE can attain a larger stretch in the dynamic response than the quasistatic actuation. Furthermore, with the decreasing frequency of the applied electric load, the viscoelastic DE system will present dynamic stability evolution from an aperiodic motion to the quasiperiodic motion. The DE system may also experience a stability evolution from a single cycle motion to multicycle motion with the increasing relaxation times. The value and variation trend of the amplitude of the stretch are highly dependent on the excitation frequency and the relaxation time.http://dx.doi.org/10.1155/2018/2803631 |
| spellingShingle | Junjie Sheng Yuqing Zhang Dynamic Electromechanical Response of a Viscoelastic Dielectric Elastomer under Cycle Electric Loads International Journal of Polymer Science |
| title | Dynamic Electromechanical Response of a Viscoelastic Dielectric Elastomer under Cycle Electric Loads |
| title_full | Dynamic Electromechanical Response of a Viscoelastic Dielectric Elastomer under Cycle Electric Loads |
| title_fullStr | Dynamic Electromechanical Response of a Viscoelastic Dielectric Elastomer under Cycle Electric Loads |
| title_full_unstemmed | Dynamic Electromechanical Response of a Viscoelastic Dielectric Elastomer under Cycle Electric Loads |
| title_short | Dynamic Electromechanical Response of a Viscoelastic Dielectric Elastomer under Cycle Electric Loads |
| title_sort | dynamic electromechanical response of a viscoelastic dielectric elastomer under cycle electric loads |
| url | http://dx.doi.org/10.1155/2018/2803631 |
| work_keys_str_mv | AT junjiesheng dynamicelectromechanicalresponseofaviscoelasticdielectricelastomerundercycleelectricloads AT yuqingzhang dynamicelectromechanicalresponseofaviscoelasticdielectricelastomerundercycleelectricloads |