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Poureini, R., Soleimanimehr, Hamid, Viliani, N., Abdollahi, A.. (1404). Reduction of Biaxial Bending and Torsion in Ionic Polymer-Metal Actuators through Symmetric Voltage Distribution and Improved Boundary Conditions. هنرهای کاربردی, (), -. doi: 10.22075/macs.2026.38454.1894
R. Poureini; Hamid Soleimanimehr; N. Viliani; A. Abdollahi. "Reduction of Biaxial Bending and Torsion in Ionic Polymer-Metal Actuators through Symmetric Voltage Distribution and Improved Boundary Conditions". هنرهای کاربردی, , , 1404, -. doi: 10.22075/macs.2026.38454.1894
Poureini, R., Soleimanimehr, Hamid, Viliani, N., Abdollahi, A.. (1404). 'Reduction of Biaxial Bending and Torsion in Ionic Polymer-Metal Actuators through Symmetric Voltage Distribution and Improved Boundary Conditions', هنرهای کاربردی, (), pp. -. doi: 10.22075/macs.2026.38454.1894
Poureini, R., Soleimanimehr, Hamid, Viliani, N., Abdollahi, A.. Reduction of Biaxial Bending and Torsion in Ionic Polymer-Metal Actuators through Symmetric Voltage Distribution and Improved Boundary Conditions. هنرهای کاربردی, 1404; (): -. doi: 10.22075/macs.2026.38454.1894

Reduction of Biaxial Bending and Torsion in Ionic Polymer-Metal Actuators through Symmetric Voltage Distribution and Improved Boundary Conditions

Mechanics of Advanced Composite Structures
مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 06 اسفند 1404    اصل مقاله (829.14 K)
نوع مقاله: Research Article
شناسه دیجیتال (DOI): 10.22075/macs.2026.38454.1894
نویسندگان
R. Poureini1؛ Hamid Soleimanimehr* 2؛ N. Viliani3؛ A. Abdollahi4
1Department of Mechanical Engineering, SR.C., Islamic Azad University, Tehran, Iran.
2Modern Automotive Research Center, Department of Mechatronics and Computer Engineering, SR.C., Islamic Azad University, Tehran, Iran
3Department of Mechanical Engineering, Ab.C., Islamic Azad University, Abhar, Iran,
4Modern Automotive Research Center, Department of Mechanical Engineering, SR.C., Islamic Azad University, Tehran, Iran
تاریخ دریافت: 04 مرداد 1404،  تاریخ بازنگری: 25 دی 1404،  تاریخ پذیرش: 06 اسفند 1404 
چکیده
In this paper, a combined analytical and numerical framework is presented to reduce or eliminate biaxial bending and torsion in ionic polymer–metal composite (IPMC) actuators. The problem is formulated based on the coupled Nernst–Planck–Poisson model for ion transport and electric field distribution, together with the Euler–Bernoulli beam theory for mechanical response. the main innovation of this study is the integrated design of a two-dimensional symmetric electric field distribution V(x,y) and modified electrochemical–mechanical boundary conditions that simultaneously suppress transverse and torsional gradients. In addition, field- and time-dependent mechanical moduli E and G are introduced to represent viscoelastic effects and electro-mechanical softening more realistically. this comprehensive coupling allows the model to maintain both mathematical and physical symmetry, leading to a uniform ion distribution and balanced bending–torsion response—an advancement beyond previous electro-chemo-mechanical models that considered symmetry only partially or in a single direction. numerical results, using realistic dimensions and a 5 V applied voltage, show that the proposed symmetric field design can reduce transverse bending by up to 87.5% and torsional strain energy by up to 88%. These findings demonstrate that optimized electric field design, appropriate boundary conditions, and field-dependent viscoelastic modeling can substantially enhance IPMC actuator performance and minimize undesired biaxial deformation.
کلیدواژه‌ها
Ionic Polymer-Metal Composite؛ Energy Method؛ Nernst-Planck Equation؛ Biaxial Bending؛ Torsion
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