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基于孔洞分布理论的多孔材料板振动分析

马宇立 陈继伟 刘咏泉 苏先樾

马宇立, 陈继伟, 刘咏泉, 苏先樾. 基于孔洞分布理论的多孔材料板振动分析[J]. 应用数学和力学, 2012, 33(12): 1392-1402. doi: 10.3879/j.issn.1000-0887.2012.12.002
引用本文: 马宇立, 陈继伟, 刘咏泉, 苏先樾. 基于孔洞分布理论的多孔材料板振动分析[J]. 应用数学和力学, 2012, 33(12): 1392-1402. doi: 10.3879/j.issn.1000-0887.2012.12.002
MA Yu-li, CHEN Ji-wei, LIU Yong-quan, SU Xian-yue. Vibration analysis of foam plates based on cell volume distribution[J]. Applied Mathematics and Mechanics, 2012, 33(12): 1392-1402. doi: 10.3879/j.issn.1000-0887.2012.12.002
Citation: MA Yu-li, CHEN Ji-wei, LIU Yong-quan, SU Xian-yue. Vibration analysis of foam plates based on cell volume distribution[J]. Applied Mathematics and Mechanics, 2012, 33(12): 1392-1402. doi: 10.3879/j.issn.1000-0887.2012.12.002

基于孔洞分布理论的多孔材料板振动分析

doi: 10.3879/j.issn.1000-0887.2012.12.002
基金项目: 国家自然科学基金资助课题(90916007); 国家留学基金委(CSC)的资助(第一作者)课题
详细信息
    作者简介:

    马宇立(1983—),男,上海人,工程师,博士(E-mail: ma-yl@sinr.cn);苏先樾(联系人. Tel: +86-10-62759378; E-mail: xyswsk@pku.edu.cn).

  • 中图分类号: O113.1;O32

Vibration analysis of foam plates based on cell volume distribution

Funds: Project supported by the National Natural Science Foundation of China (No. 90916007)
  • 摘要: 主要研究了不规则几何结构多孔材料制备的板材的振动分析.基于Gibson-Ashby等效模量计算,引入了分布因子加以改进原有的理论.对于材料的孔洞分布情况,提出了Burr分布的概率密度拟合,获得了Burr分布的3个自变量参数并用实际的孔洞几何参数进行了比对与描述.基于平板振动理论和等效模量理论,计算出了随着孔洞分布情况变化下的平板固有振动频率,并分析了孔洞尺寸与频率间的关系.之后引入了尺度因子来量化描述平均孔洞尺寸对多孔平板的频率影响.结论证明了改进的等效理论能够有效地体现孔洞的分布对平板力学性能的改变,论述了孔洞尺寸范围,孔洞离散度以及平均孔洞尺寸对多孔方板结构固有频率的影响.这种影响将会对多孔材料结构的优化设计起指导作用.
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出版历程
  • 收稿日期:  2011-03-14
  • 修回日期:  2012-04-12
  • 刊出日期:  2012-12-15

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