基于PolyMAX模态分析法研究闭孔泡沫铝的阻尼特性

陈兵; 薛俊强; 王辉; 杨东辉; 王文瑞

doi:10.11973/jxgccl201603014

基于PolyMAX模态分析法研究闭孔泡沫铝的阻尼特性

1.
北京科技大学机械工程学院, 北京 100083
2.
北京科技大学新金属材料国家重点实验室, 北京 100083
3.
河海大学力学与材料学院, 南京 210098

基金项目:

北京科技大学新金属材料国家重点实验室科研项目(2011-Z13)

详细信息

作者简介:
陈兵(1976-), 男, 湖北荆州人, 副教授, 博士。

中图分类号: TB302.3
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出版历程
- 收稿日期: 2015-12-07
- 刊出日期: 2016-03-19

Damping Properties of Closed-Cell Aluminum Foam Based on PolyMAX Modal Analysis Method

摘要

摘要: 采用Image-Pro Plus软件表征闭孔泡沫铝的孔结构, 在此基础上采用PolyMAX模态分析法研究了闭孔泡沫铝的模态阻尼比与孔隙率、平均孔径和固有频率之间的关系, 并通过模态置信度矩阵验证各阶试验模态的独立性。结果表明: 各阶模态之间具有较高的独立性, 泡沫铝的阻尼比随孔隙率的提高以及平均孔径的降低而呈增加的趋势, 且各阶固有频率随孔隙率的增加而降低。
- 泡沫铝 /
- PolyMAX模态分析法 /
- 模态阻尼比
Abstract: The software Image-Pro Plus was employed to characterize pore-structure of closed-cell aluminum foams, and then the relationship between the modal damping ratio and porosity, nominal pore-size and natural frequency of aluminum foam were investigated using the PolyMAX modal analysis method. Furthermore, the modal assurance criterion was used to verify the independence of experimental results. The results show that each order modal had high independence.The damping ratio increased with the increase of porosity, but inversely proportional to the nominal pore-size. Meanwhile, each order natural frequency of the aluminum foam decreased with the increase of the porosity.
- aluminum foam /
- PolyMAX modal analysis method /
- modal damping ratio

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参考文献(25)

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基于PolyMAX模态分析法研究闭孔泡沫铝的阻尼特性

作者简介: 陈兵(1976-), 男, 湖北荆州人, 副教授, 博士。

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出版历程

Damping Properties of Closed-Cell Aluminum Foam Based on PolyMAX Modal Analysis Method

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出版历程

目录

作者简介:
陈兵(1976-), 男, 湖北荆州人, 副教授, 博士。