التفاصيل البيبلوغرافية
| العنوان: |
Output Force Density Saturation in COMSOL Simulations of Biomimetic Artificial Muscles. |
| المؤلفون: |
Coltelli, Michelangelo A., Keeven, Joshua M., Leckie, Jacob M., Catterlin, Jeffrey K., Sadagic, Amela, Kartalov, Emil P. |
| المصدر: |
Applied Sciences (2076-3417); Aug2023, Vol. 13 Issue 16, p9286, 8p |
| مصطلحات موضوعية: |
FORCE density, SYNTHETIC fibers, ARTIFICIAL muscles, MICROFLUIDIC devices, BIOMIMETIC materials, PROSTHETICS, ACTUATORS |
| مستخلص: |
Featured Application: Artificial muscles, actuators, prosthetics, exoskeletons, walker robots, undersea drones, biomimetic propulsion. Many modern applications, such as undersea drones, exoskeletal suits, all-terrain walker drones, prosthetics, and medical augments, would greatly benefit from artificial muscles. Such may be built through 3D-printed microfluidic devices that mimic biological muscles and actuate electrostatically. Our preliminary results from COMSOL simulations of individual devices and small arrays (2 × 2 × 1) established the basic feasibility of this approach. Herein, we report on the extension of this work to N × N × 10 arrays where Nmax = 13. For each N, parameter sweeps were performed to determine the maximal output force density, which, when plotted vs. N, exhibited saturation behavior for N ≥ 10. This indicates that COMSOL simulations of a 10 × 10 × 10 array of this type are sufficient to predict the behavior of far larger arrays. Also, the saturation force density was ~9 kPa for the 100 μm scale. Both results are very important for the development of 3D-printable artificial muscles and their applications, as they indicate that computationally accessible simulation sizes would provide sufficiently accurate quantitative predictions of the force density output and overall performance of macro-scale arrays of artificial muscle fibers. Hence, simulations of new geometries can be done rapidly and with quantitative results that are directly extendable to full-scale prototypes, thereby accelerating the pace of research and development in the field of actuators. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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