ABNORMAL BENDING OF MICRO-CANTILEVER PLATE INDUCECD BY A DROPLET

作者：Liu, Jianlin^*; Zhu, Xueyan; Li, Xinkang; Li, Zhiwei

来源：Acta Mechanica Solida Sinica, 2010, 23(5): 428-436.

• micro-cantilever plate
• surface tension
• Laplace pressure difference
• abnormal bending
• deflection

The abnormal bending of a micro-cantilever plate induced by a droplet is of great interest and of significance in micro/nano-manipulations. In this study, the physical mechanism of this abnormal phenomenon induced by an actual droplet is elucidated. Firstly, the morphologies of 2D and 3D droplets are solved analytically or numerically. Then the Laplace pressure difference acting on the cantilever plate caused by the droplet is presented. Finally, the deflections of the micro-cantilever plates driven by the capillary forces are quantitatively analyzed. These analytical results may be beneficial to some engineering applications, such as micro-sensors, MEMS and the micro/nano-measurement.

• 出版日期2010-10
• 单位中国石油大学（北京）