提出了一种基于不可逆热力学和纯弯曲理论的力电耦合模型,以描述和预测离子聚合物金属复合材料的力电特性.力电耦合模型的表达形式可简化为含有两个驱动力(电场E和压力梯度▽p)的线性等式,主要依据离子传输、电场作用和弹性变形之间的耦合关系预测IPMC的力电特性;采用纯弯曲理论近似描述了IPMC的受力特征.这个力电耦合模型可解释IPMC材料的驱动特性和传感特性,能较好地预测IPMC在直流激励下的响应,误差在-7%以内.
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