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Sound radiation characteristics analysis for the honeycomb reinforced laminated structures with viscoelastic material fillers through the asymptotic homogenous method
Composite Structures ( IF 6.3 ) Pub Date : 2020-08-01 , DOI: 10.1016/j.compstruct.2020.112266
X.Q. Zhou , S.Q. Zhang , W.W. Lin

Abstract In this study, the sound radiation characteristics of the laminated structures reinforced by honeycomb and composed by viscoelastic material was investigated. Temperature- and frequency-dependent behaviors of the viscoelastic material were considered in this analysis, those parameters affected the dynamics effective properties of the composite structure. After the dynamic equivalent effective stiffness and the dynamic deformation of the structure are determined according to the homogenous asymptotic method, the sound radiation behaviors of the structures in fields of frequency and temperature are achieved. Consequently, the sound radiation characteristic, such as the sound pressure in far-field and the sound radiation efficiency that influenced by the geometry dimensions of the honeycomb structure was examined. Finally, the study is validated by the degeneration method with a degeneration mathematical model that performed in the published literature.

中文翻译:

基于渐近均匀法的粘弹性材料填料蜂窝增强层合结构声辐射特性分析

摘要 本研究对蜂窝状粘弹性材料构成的蜂窝增强层合结构的声辐射特性进行了研究。在该分析中考虑了粘弹性材料的温度和频率相关行为,这些参数影响复合结构的动力学有效特性。根据齐次渐近法确定结构的动力等效有效刚度和动力变形后,得到结构在频率和温度场的声辐射行为。因此,研究了受蜂窝结构几何尺寸影响的声辐射特性,例如远场声压和声辐射效率。最后,
更新日期:2020-08-01
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