研究半无限大功能梯度电磁复合材料中的表面波问题.假设材料性质沿厚度方向指数变化，在电磁学开路和短路边界条件下，基于电磁弹性介质的运动方程得到表面波波速方程,并讨论材料梯度系数对波速的影响.该研究为功能梯度电磁弹性材料器件的研制提供理论依据.

Surface wave in half-infinite functionally graded magneto-electro-elastic materials is nvestigated. For convenience in the analysis, characteristics of the material are assumed to vary exponentially along the hickness direction. Based on the magneto-electro-elastic theory, a velocity equation of surface wave is derived under the open and short-circuit boundary conditions. The effect of material gradient coefficient on the wave velocity is studied. The computation results provide a basis for the development of new functionally graded magnetoelectroelastic devices.