材料工程2026，Vol.54Issue(6)：105-114,10.DOI:10.11868/j.issn.1001-4381.2025.000411
高柔性离子聚合物金属复合材料的动态响应建模及其传递函数优化
Dynamic response modeling and transfer function optimization of high-flexibility ionic polymer-metal composites
摘要
Abstract
As a novel class of smart materials with high flexibility and large deformation,ionic polymer-metal composites(IPMCs)exhibit exceptional electro-actuated deformation characteristics,demonstrating significant potential in flexible robotics,micro-electro-mechanical systems,and biomedical engineering.Nevertheless,their inherent nonlinear dynamic responses and complex kinetic behaviors pose substantial challenges to precise control,severely limiting their deployment in high-performance systems.To overcome this bottleneck,the present study establishes a dynamic response model for high-flexibility,large-deformation IPMCs and optimizes their transfer function based on equivalent-circuit theory.Through an in-depth analysis of the material's nonlinear properties,a precise constitutive relationship between the physical system and the numerical model is established.To achieve model-order reduction from an infinite-dimensional to a finite-dimensional representation,identification criteria tailored to the large-deformation characteristics of the material are formulated,and three distinct identification methods are employed for systematic identification of its electro-actuated deformation behavior.Results indicate that the refined weighted-iterative algorithm offers markedly superior identification performance,achieving an accuracy exceeding 98%.Additionally,the study reveals that during electro-actuated deformation,the amplitude and phase angle of the material's dynamic response decrease with increasing resistance but increase with increasing capacitance.The optimized model proposed herein can effectively guide the design and fabrication of IPMCs while enabling high-precision control of their large-deformation behavior.This work provides a solid theoretical foundation for the development of control systems for such materials and holds significant scientific and engineering value for advancing their flexible applications in high-performance domains.关键词
离子聚合物金属复合材料/动态响应/驱动特性/传递函数/软体机器人Key words
ionic polymer-metal composite/dynamic response/actuation characteristic/transfer function/soft robot分类
通用工业技术引用本文复制引用
王红,杨亮,杨延宁..高柔性离子聚合物金属复合材料的动态响应建模及其传递函数优化[J].材料工程,2026,54(6):105-114,10.基金项目
国家自然科学基金项目(52365069) （52365069）
陕西省重点研发计划项目(2025CY-YBXM-099) （2025CY-YBXM-099）
陕西省自然科学基础研究计划项目(2024JC-YBQN-0472) （2024JC-YBQN-0472）
延安大学科研专项项目(2023JBZR-005,2023HBZ-013) （2023JBZR-005,2023HBZ-013）
