该文在径向基函数(radial basis function,RBF)及其插值函数研究基础上,构建了基于RBF插值的流固耦合信息传递模型,进一步通过程序编制,在同济大学空间结构自动分析与设计软件—AADS系统中实现了对任一时间步上的流固交互作用分析,并得到与ADINA软件非常吻合的计算结果。算例分析表明:径向基函数可作为一种有效的界面信息传递方法应用于对三维流固耦合问题的研究。 Based on the study of Radial Basis Function (RBF) and its interpolation function, this paper constructs a fluid-solid coupling information transfer model based on RBF interpolation. Through the program compilation, the paper analyzes the spatial structure automatic analysis and design software of Tongji University -AADS system to achieve the fluid-solid interaction analysis at any time step, and get ADINA software is very consistent with the calculation results. The case study shows that radial basis function can be used as an effective interface information transfer method in the study of three-dimensional fluid-structure interaction.