大阻尼高比刚度复合材料仪表板结构设计及动态特性分析

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摘要提出了一种新型五层夹芯复合材料仪表板的设计结构，其中上、下蒙皮和中心层设计成嵌入式共固化多层阻尼复合材料结构，并在上蒙皮和中心层以及在下蒙皮和中心层之间设计成一定厚度的聚甲基丙烯酰亚胺泡沫材料，通过有限元数值模拟对其动力学性能进行研究，并与制作出试件的模态分析实验结果进行对比，表明此种设计结构具有非常高的阻尼和比刚度特性，为轻质精密复合材料仪表板设计理论和制作工艺的进一步研究奠定了坚实的基础。

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	梁森1
	张术国 1
	梁天锡2
	韦利明 2

关键词 ：夹芯复合材料结构, 嵌入式共固化多层阻尼复合材料, 结构设计, 数值模拟, 模态分析实验

Abstract：A new type of five-layer sandwich composite panels was presented in detail.The upper and lower skins and center layer were designed as embedded co-cured composite structures with multilayer damping films.Between the upper skin and center layer as well as between the lower skin and the center layer,a layer of polymethacrylimide foam material with a certain thickness was put in.The dynamic performances of the specimen were analysed deeply by using the finite element simulation and experimental modal analysis.By making comparison between the relative results,the conclusion shows that the designed structure has very high damping and specific stiffness characteristics,and will provide a foundation to the design principle and application of light-weight,large-damping and high-precision composite materials instrument panels.

Key words： composite sandwich structure embedded co-cured composite structure with multilayer damping films structure design numerical simulation experimental modal analysis

收稿日期: 2015-06-17 出版日期: 2017-03-15

引用本文:

梁森1,张术国 1，梁天锡2，韦利明 2. 大阻尼高比刚度复合材料仪表板结构设计及动态特性分析[J]. 振动与冲击, 2017, 36(6): 212-217.
LIANG Sen1,ZHANG Shuguo1，LIANG Tianxi2，WEI Liming2 . Structural design and dynamic characteristics of large damping and high specific stiffness composite panels. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(6): 212-217.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2017/V36/I6/212

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