Equivalent or condensed plate models are being used in various industries to reduce the computation time in finite element modelling. Out of the available equivalent plate models, the model developed by J.L. Guyader in 1978 exhibits high agreement with Lamb wave theory but it requires some time for implementation. Therefore, in this paper, a simple model is proposed to quickly compute the dynamic equivalent parameters of a three-layer sandwich panel. Although the model is formulated from only four parameters, which could be easily computed via the asymptotic and transition behaviours of the sandwich panel, it is shown to be able to capture the equivalent dynamic response for the entire frequency range.

等效或压缩板模型正在各种行业中使用，以减少有限元建模中的计算时间。在可用的等效板模型中，JL Guyader于1978年开发的模型与Lamb波理论高度吻合，但需要一些时间来实施。因此，本文提出了一种简单的模型来快速计算三层夹芯板的动态等效参数。尽管该模型仅由四个参数组成，可以通过夹心板的渐近和过渡行为轻松计算出该模型，但它显示出能够捕获整个频率范围内的等效动态响应。