导纳功率流技术一般用于分析一维耦合梁结构或点耦合结构的振动响应和传输．将功率流技术用于相互垂直、一般连接、受横向点激励力作用的二维耦合薄板结构中，提出了耦合板的各子结构板的导纳功率流模型，将适用于单点耦合板的导纳函数进行了拓展，导出了输入到源极的弯曲波功率流表达式和传递到接收板的传递导纳功率流表达式．耦合板的共振模态响应可精确确定．%In gernal，mobility power-flow analysis has been used for the analysis of the vibration response and transmission between element of the coupled structures．The power-flow technique is extended to two-dimensional thin platelike coupled stuctures which are orthognally joined along a common edge and excited by a transvers point harmonic force．Then，power-flow model of substructural components of the coupled plates is given．By extended mobility functions，the expressions which indicates the input power of flexible wave of source plate and the trandmitted power of receiver plate of the coupled structures are derived．Thus，the resonant model response of the coupled structures is accurately determined．
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