中文摘要：

基于不可逆热力学和薄板大挠度理论建立了大挠度状态下的IPMC的传感模型。即以不可逆热力学理论为基础,描述了IPMC的离子输运内在机理,以及离子运动与电场及浓度差之间的关系,并考察了IPMC内部的离子运动形式,建立电场与内部压力差之间的关系;同时通过分析受外载荷作用后发生大挠度情况下压力与挠度之间的关系,建立IPMC在大挠度时曲率与两金属膜之间形成的电势差之间的关系,即给出了大挠度状态下IPMC的传感性能模型,并分析了IPMC输出电压的影响因素。将模型仿真值与实验结果进行对比,误差在25%以内,说明建立的传感模型能够较好的预测大挠度状态下IPMC受载后的输出电压。研究结果也表明环境因素对IPMC传感性能的影响很大,在一定程度上限制了其应用范围。

英文摘要：

Based on the irreversible thermodynamics theory, It not only describes the ionic transportation mechanism but also establishes the relationship between the electric field, concentration gradient and ionic motion. The potential difference between two metal film in certain curvature was established by analyzing the relationship between the pressure and the deflection in the condition of large deformation under external load, which gives the sensing model of the IPMC, and analyzes the influence factors of the output voltage of IPMC. The simulation and experimental results were compared, and the error is less than 25%, which prove that the established sensing model can predict the output voltage of IPMC after loading preferably. The results also indicated that the environment has a major influence on IPMC sensing performance, and limit the range of application.