摘要
提出了一种蜂窝材料的铺层等效有限元模型构建方法,可快速准确分析蜂窝板材力学特性。基于该模型所计算的模态、静力和冲击谱结果与目前常用有限元建模方法计算结果进行对比,可以得出结论:铺层等效有限元模型不仅与原蜂窝板力学性能有较好的一致性,而且可以极大地提高计算效率。基于该铺层等效有限元模型,将复杂参数与目标量化,建立蜂窝胞元尺寸长度与前五阶模态频率的函数关系,可为结构的优化设计提供依据。
A multi-layered equivalent finite element(FE)modeling method for honeycomb material was proposed to fast and accurately analyze honeycomb plates’mechanical properties.The calculated results of modal analysis,static analysis,and shock spectral analysis based on this model were compared with those using the current frequently-used FE modeling method.It was shown that the results using the multi-layered equivalent FE model agree better with performances of the original honeycomb plates;the proposed method can significantly improve calculation efficiency;based on the multi-layered equivalent FE model,complex parameters and target are quantified,and the function relation between honeycomb cell size and the first five order modal frequencies is established to provide a basis for structural optimization design.
作者
徐洋
王皓辉
盛晓伟
XU Yang;WANG Haohui;SHENG Xiaowei(School of Mechanical Engineering,Donghua University,Shanghai201620,China)
出处
《振动与冲击》
EI
CSCD
北大核心
2018年第23期45-51,共7页
Journal of Vibration and Shock
基金
国家自然科学基金(51675094)
中央高校基金重点资助项目(2232017A3-04)
关键词
蜂窝板
铺层等效
模态分析
静力分析
冲击谱分析
honeycomb
multi-layered equivalent FE modeling method
modal analysis
static analysis
shock spectral analysis
