关键词:  , 液桥, 表面张力, 能量变分, 分形

Abstract: The liquid forms into liquid bridges between bodies which are close to each other，and tends to pull

the bodies to get nearer. The structure and stability of the liquid bridge are mainly determined by the structure of

solid，the characters of liquid and solid，as well as the temperature. The energy variation method is used to figure out

the stable state of the liquid bridge，which allows the force between liquid and solid to be accurately calculated，under

both static and quasi-static circumstance. Taking thin liquid structure between glass plates for instance，the fast

breakage process of large area liquid bridges are discussed，and fractal phenomenon，fingering phenomenon and inhomogeneous

shrink in this process are analyzed. The liquid bridges have significant effects on micro electro mechanical

system and bio-adhesion.

Key words: liquid bridge, surface tense, energy variation, fractal