Academic Journal
Unveiling design criteria of hollow fibers dielectric elastomer actuators:a computational and experimental study
| العنوان: | Unveiling design criteria of hollow fibers dielectric elastomer actuators:a computational and experimental study |
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| المؤلفون: | Jafarzadeh, Sina, Gökova, Maxim, Kang, Zhaoqing, Yu, Liyun, Skov, Anne Ladegaard |
| المساهمون: | Madden, John D. W. |
| المصدر: | Jafarzadeh , S , Gökova , M , Kang , Z , Yu , L & Skov , A L 2024 , Unveiling design criteria of hollow fibers dielectric elastomer actuators : a computational and experimental study . in J D W Madden (ed.) , Proceedings of SPIE : Electroactive Polymer Actuators and Devices (EAPAD) XXVI . vol. 12945 , 129450O , SPIE - International Society for Optical Engineering , Proceedings of SPIE - The International Society for Optical Engineering , vol. 12945 , SPIE Smart Structures + Nondestructive Evaluation 2024 , Long Beach , California , United States .... |
| بيانات النشر: | SPIE - International Society for Optical Engineering |
| سنة النشر: | 2024 |
| المجموعة: | Technical University of Denmark: DTU Orbit / Danmarks Tekniske Universitet |
| مصطلحات موضوعية: | Dielectric Elastomer Actuators (DEAs), Electro-Mechanical Modeling, Finite Element Method (FEM), Hollow Fiber Actuators, Hollow Fiber Dielectric Elastomer Actuators (HFDEAs) |
| الوصف: | Dielectric elastomer actuators (DEAs) have been proclaimed as a transformative technology with applications spanning from robotics to biomedical devices. They are especially appealing because of their key characteristics, including low weight and lifetime. However, there are still challenges in tuning these actuators for desirable mechanical performance. Here, we examine the effects of geometry and material characteristics like inner diameter and Young's modulus on the performance of hollow fiber dielectric elastomer actuators (HFDEAs). These parameters were chosen because they are amenable to experimental validation and play a straightforward, yet significant, role in DEA performance. The model's parameters are based on experimental data, giving our computational simulations a solid foundation. The study takes into consideration the electro-mechanical coupling using finite element method (FEM) simulations in COMSOL Multiphysics. While the electrodes' attraction to one another results in length expansion, the results suggest that the larger surface charge density on the internal electrode compared to the inner one in hollow fiber DEAs results in radial expansion as well. This model also provides an estimation on the actuator holding force which is challenging to evaluate experimentally. According to preliminary results, careful parameter selection can indeed increase the holding force, thereby enhancing the actuator's overall effectiveness. In conclusion, this study provides an understanding of design parameters of HFDEA offering a comprehensive framework for HFDEA design by integrating both experimental and computational approaches. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| ردمك: | 978-1-5106-7196-6 1-5106-7196-X |
| Relation: | https://orbit.dtu.dk/en/publications/75c33ede-c3a5-473d-b6be-50196c3d5683; urn:ISBN:9781510671966 |
| DOI: | 10.1117/12.3010130 |
| الاتاحة: | https://orbit.dtu.dk/en/publications/75c33ede-c3a5-473d-b6be-50196c3d5683 https://doi.org/10.1117/12.3010130 https://backend.orbit.dtu.dk/ws/files/364133754/129450O.pdf |
| Rights: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.7A422649 |
| قاعدة البيانات: | BASE |
| ردمك: | 9781510671966 151067196X |
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| DOI: | 10.1117/12.3010130 |