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本文利用保守和非保守耦合系统的统计能量分析原理，针对平板－边框耦合系统的具体结构形式，分别建立了两子系统和五子系统ＳＥＡ模型，重点研究了这两个分析模型之间的能量关系，从而使得复杂耦合系统的保守和非保守耦合损耗因子可以由与其相似的简单耦合系统推算出来。理论分析和实验研究的结果表明，平板到边框的保守耦合损耗因子为平板到梁的耦合损耗因子的４倍，非保守耦合损耗因子在计入与耦合阻尼相关的等效比例系数后也可得到相似的定量关系。理论分析结果与实验结果良好的一致性证明了本文研究方法的可行性与研究结果的可靠性。
In this paper, based on the principle of statistical energy analysis of both conservative and non-conservative coupled systems, the two-subsystem and five-subsystem SEA models are established respectively for the specific structure of plate-to-frame coupling system. The energy relations between these two analytical models , So that the conservative and non-conservative coupling loss factors of complex coupled systems can be deduced from their simple coupled systems. Theoretical analysis and experimental results show that the plate-to-frame conservative coupling loss factor is 4 times the plate-to-beam coupling loss factor, and the non-conservative coupling loss factor is also obtained after the equivalent damping factor is calculated Similar quantitative relationship. The good agreement between theoretical analysis and experimental results proves the feasibility of the research method and the reliability of the research results.