A novel design technique for IPMC diaphragm in micropump application
A novel design technique for IPMC diaphragm in micropump application
复制标题
微型泵应用中IPMC隔膜的新颖设计技术
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
A. K. Kwan
中科院分区：
文献类型：
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作者：
D. N. C. Nam;Y. Il;A. K. Kwan
微型泵在生物医学设备和微系统方面具有巨大的应用潜力。离子聚合物金属复合材料（IPMC）由于驱动电压低、操作灵活、具有自感应能力，已被用作微型泵的隔膜。本文通过变形能力的数值结果提出了一种新颖的IPMC隔膜设计技术，使IPMC隔膜的设计过程更加方便。该技术从IPMC执行器的物理诱导应力模型开始，可以根据输入电压信号获得IPMC内部的诱导应力信息。诱导应力模型是通过求解沿 IPMC 厚度的充电密度的偏微分方程 (PDE) 来实现的。接下来，将诱导应力信息导入ANSYS有限元模型作为变形机制。通过ANSYS环境，可以对IPMC执行器的变形进行可视化分析。利用该技术，研究了IPMC隔膜的新颖设计，并获得了用于微型泵的IPMC隔膜的优化设计。
Micropumps have gained a great potential to be applied as biomedical devices and micro systems. Because of low driven voltage, flexible operation, and self sensing ability, the ionic polymer metal composite (IPMC) material has been used as diaphragm of micropumps. This paper presents a novel design technique of IPMC diaphragm with numerical results about deformation capabilities and makes the design process of IPMC diaphragm be more convenient. The technique starts from a physical induced stress model of IPMC actuators, where the induced stress information inside the IPMC can be obtained corresponding to the input voltage signal. The induced stress model is achieved by solving the partial differential equation (PDE) of charging density along the IPMC thickness. Next, the induced stress information is imported into the ANSYS finite element model as deforming mechanism. Via ANSYS environment, the deformation of IPMC actuator can be visually analyzed. Using this technique, a novel design of IPMC diaphragm is then investigated and the optimized design of IPMC diaphragm for micropump is obtained.
Suwazono S.：“听音乐期间所有阶段事件相关的电位。Nakada T.（编辑）综合人脑科学”爱思唯尔，阿姆斯特丹。
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