对采用声弹性法、有限元法和边界元法建立的声振分析模型进行了讨论，指出在一定假设条件下三种模型的统一性，同时指出了各种模型的优缺点和适用范围．通过对一个矩形截面弹性壁腔体内部声场和壁面振动的实验测量，说明了各种模型求解时所用简化假设的合理性． The acoustic vibration analysis model established by the acoustic elasticity method, the finite element method and the boundary element method is discussed. The unification of the three models under certain assumptions is pointed out, and the advantages, disadvantages and applicability of the various models are also pointed out. Through the experimental measurement of sound field and wall vibration inside a rectangular sectioned elastic wall cavity, the rationality of simplified assumptions used in solving various models is illustrated.