Natural Frequency Prediction and Analysis of Honeycomb Sandwich Plate with Thermal Load

Abstract

The stress distribution and natural frequency changing of honey comb sand wich plate is proposed in this paper with thermal load, and the natural frequency of honey combs and wich plate is predicted according to the stress distribution. The simulation results show that the natural frequency of honey combs and wich plate with carbon fiber skin is essentially the same with thermal load, and the constraint effect to the frequency change is very small. The frequency of honey combs and wich plate with aluminum alloy skin with thermal load changes greatly when constraint form changes, and the frequency is essentially the same with a small amount of constraint, and the major constraint will cause the frequency decreasing dramatically.

Keywords

honey comb sand wich plate / thermal load / natural frequency / stress distribution

References

[1] 史晓鸣,杨炳渊.瞬态加热环境下变厚度板温度场及热模态分析[J].计算机辅助工程,2006(增刊):15-18.[Shi X M, Yang B Y. Temperature field and modean alysis of flatplate with the rmalenviron mentoftransien the ating[J]. Computer Aided Engineering, 2006(S):15-18.]
[2] 袁家军,于登云,陈烈民.卫星结构设计与分析[M].北京:中国宇航出版社,2004:157-176.[Yuan J J, Yu D Y, Chen L M. Satellite structural design and analysis[M]. Beijing:China Astronautic Publishing House, 2004:157-176.]
[3] 王斌.结构多性能优化设计及其在航天结构设计中的应用[D].大连:大连理工大学,2010.[Wang B. Multi-performance optimization of structure sand it sapplication in aerospace structural design[D]. Dalian:Dalian University of Technology, 2006.]
[4] 陈烈民,杨宝宁.复合材料的力学分析[M].北京:中国科学技术出版社,2006:157-176.[Chen L M, Yang B N. Mechanical analysis for composite material[M]. Beijing:Science and Technology of China Press, 2006:157-176.]