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Comparative study of dynamically equivalent modeling methods for honeycomb sandwich structure: numerical simulations and experiments

机译:蜂窝夹层结构动态等效建模方法的比较研究:数值模拟与实验

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The structure of the lightweight honeycomb sandwich panel is complex. Thus, establishing an equivalent simplified model is indispensable to improve the efficiency of the dynamic analysis of honeycomb sandwich panels. In this paper, three commonly used dynamically equivalent modeling methods for honeycomb sandwich panel are studied: a dynamically equivalent method based on laminated plate theory, a single-layer plate equivalent method based on the theory of Hoff (1948), and an improved equivalent method based on Allen?(1969). Using theoretical study, numerical simulations, and experiments, the applicability of these equivalent methods and the effect of design parameters on the dynamic characteristics are studied, and the optimal dynamically equivalent method for honeycomb sandwich panels is obtained.
机译:轻质蜂窝夹层面板的结构很复杂。因此,建立等同的简化模型是必不可少的,以提高蜂窝夹层板的动态分析的效率。在本文中,研究了三种常用的蜂窝夹层板的动态等效式建模方法:基于层压板理论的动态等效方法,一种基于霍夫(1948)理论的单层板等同法,以及改进的等效方法基于艾伦?(1969年)。使用理论研究,数值模拟和实验,研究了这些等同方法的适用性和设计参数对动态特性的影响,获得了蜂窝夹层板的最佳动态等效方法。

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