中文摘要：

当前的工作建议描述涂的微水泡的动力学的一个模型，它由与可变表面紧张系数介绍一个粘弹性的接口连接煤气的地区和液体地区简化传统的三层的模型到二层的。在修改模型，传统二个接口边界条件被合为一个简化对水泡的描述。而且，表面紧张系数与更低、上面的限制被定义为水泡半径的功能，它与弄弯和水泡的破裂机制有关。进一步的讨论关于在水泡动力学上源于表面紧张系数的变化的效果被做。Optison 和 Sonozoid 的动态回答微水泡，基于散布技术的光试验性地测量了(从以前出版的工作适应了) ，用两个经典三层的模型被模仿(例如丘奇的模型) 并且简化模型。结果证明我们的简化模型象教堂的模型一样工作。

英文摘要：

The current work proposes a model describing the dynamics of coated microbubbles, which simplifies the traditional three-layer model to a two-layer one by introducing a visco-elastic interface with variable surface tension coefficients to connect the gas zone and the liquid zone. In the modified model, the traditional two interfaces boundary conditions are combined into one to simplify the description of the bubble. Moreover, the surface tension coefficient is defined as a function of bubble radius with lower and upper limits, which are related to the buckling and rupture mechanisms of the bubble. Further discussion is made regarding the effects resulting from the change of the surface tension coefficient on bubble dynamics. The dynamic responses of Optison and Sonozoid microbubbles, measured experimentally based on light scattering technology （adapted from previously published work）, are simulated using both classic three-layer models （e.g. Church＇s model） and simplified model. The results show that our simplified model works as well as the Church＇s model.