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Modeling of IPMC Cantilever＇s Displacements and Blocking Forces

Journal of Bionic Engineering 2015年第1期12卷 142-151页

作者： david vokoun Qingsong He Ludek Heller Min Yu Zhendong Dai Institute of Physics of the ASCR Prague 182 21 Czech Republic Institute of Bio-lnspired Structure and Surface Engineering Nanjing University of Aeronautics and Astronautics Nanjing 210016 China

The motion of an Ionic Polymer Metal Composite （IPMC） cantilever under a periodic voltage control is modeled. In our finite element 3D model, we follow both the free tip displacements and the blocking forces for various thicknesses and elastic constants of the ionomer membrane. It turns out that the maximum displacement of the free tip strongly depends on the value of the Young＇s modulus of the electrodes. Furthermore, the maximum blocking force, Fmax, increases with the thickness of the ionomer membrane. At constant values of Young＇s moduli of the electrodes and ionomer membrane thickness, if the Young＇s modulus of the ionomer membrane varies within the range from 0.2 MPa to 1 GPa, the change of Fmax is less than 10 %. The simulated maximal displacements, blocking forces and electrical currents are compared with the corresponding sets of ex- perimental data, respectively. Qualitative agreement between the simulated and the respective measured data profiles is ob- tained. Furthermore, it is found that the assumption of electrostatic interactions in the cation depleted region of the ionomer membrane has a negligible effect. The advantage of the model consists in its simplicity.

关键词： ionic polymer metal composite actuator blocking force finite element method

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Review on Improvement,Modeling,and Application of Ionic Polymer Metal Composite Artificial Muscle

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Journal of Bionic Engineering 2022年第2期19卷 279-298页

作者： Qingsong He Guoxiao Yin david vokoun Qi Shen Ji Lu Xiaofang Liu Xianrui Xu Min Yu Zhendong Dai Jiangsu Provincial Key Laboratory of Bionic Functional Materials Institute of Bio-Inspired Structure and Surface EngineeringCollege of Mechanical and Electrical EngineeringNanjing University of Aeronautics and AstronauticsNanjing 210016China Institute of Physics of the Academy of Sciences of the Czech Republic Prague 18221Czech Republic Active Materials and Smart Living Laboratory Department of Mechanical EngineeringUniversity of Nevada Las VegasLas Vegas 89154-4027USA

Recently,researchers have concentrated on studying ionic polymer metal composite(IPMC)artificial muscle,which has numerous advantages including a relatively large strain under low input voltage,flexibility,high response,low noise,light weight,and high driving energy *** paper reports recent developments in IPMC artificial muscle,including improvement methods,modeling,and *** types of IPMCs are described,along with various methods for overcoming some shortcomings,including improvement of Nafion matrix membranes,surface preparation of Nafion membranes,the choice of high-performing electrodes,and new electro-active polymers for enhancing the properties of *** models are also reviewed,providing theoretical guidance for studying the performance and applications of *** applications such as bio-inspired robots,opto-mechatronic systems,and medical engineering are discussed.

关键词： Ionic polymer metal composite Artificial muscle Improvement Model Bio-inspired application

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