周期微桁架结构复合材料阻尼特性的研究
首发时间:2009-11-09
摘要:本文应用ANSYS软件分别建立了四面体型点阵夹芯结构钢桁架模型、周期微桁架结构复合材料模型以及施加质点的复合材料模型,并分别对三个模型进行了谐响应仿真分析。针对三个模型,分别绘制出各个关注节点的幅频曲线,并通过比较不同模型相同节点的振动响应,研究不同模型的吸能减震效果。研究表明,添加橡胶材料的复合材料模型的吸能减震效果明显好于钢架点阵夹芯结构的效果,而施加质点后的模型具有更好的吸能减震效果。
关键词: 复合材料 微桁架结构 ANSYS 谐响应分析 阻尼特性
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Research on Damping Characteristic of Composite Material with Periodic Micro-truss Structure
Abstract:The finite element model of sandwich structure with tetrahedron truss core , the finite element model of composite material with periodic micro-truss structure and the model of composite material with particles are established respectively, and put on harmonic analysis on this three models. Plot the Amplitude-frequency curve of the chosen nodes in the three models, and analyze the damping characteristic of the three models by comparing the vibration response of the same node in different model. Through the contrast, we can conclude that the composite material model has the better performance of energy absorbing and shock absorption, however, the composite material model with particles has more significant advantages.
Keywords: Composite Material Micro-truss Structure ANSYS Harmonic Analysis Damping
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