Theoretical Model and Design of Electroadhesive Pad with Interdigitated Electrodes

TitleTheoretical Model and Design of Electroadhesive Pad with Interdigitated Electrodes
Publication TypeJournal Article
Year of Publication2016
AuthorsCao, C, Sun, X, Fang, Y, Qin, Q-H, Yu, A, Feng, X-Q
JournalMaterials and Design
Start Page485
Date Published01/2016

Electricfields alter adhesive forces between materials. Electroadhesive forces have been utilized in diverse appli-cations ranging from climbing robots, electrostatic levitation to electro-sticky boards. However, the design ofelectroadhesive devices still largely relies on empirical or“trial-and-error”approaches. In this work, a theoreticalmodel is presented to analyze the electrostaticfield between the supporting wall and the electroadhesive devicewith periodic coplanar electrodes. The air-gap between the surface of electroadhesive device and the dielectricwall is explicitly taken into account in the model to consider its significant impact on electroadhesive forces.On the basis of this model, the electroadhesive force is calculated by using the Maxwell stress tensor. The effectsof key design parameters and working environments on the electroadhesion behavior are further investigated.This study not only provides a tool to reveal the underlying mechanisms of electroadhesion but also suggests po-tential strategies to optimize novel electroadhesive devices for engineering applications.