金属梯度多孔夹芯板振动特性分析
收稿日期: 2016-06-30
修回日期: 2016-12-27
网络出版日期: 2017-02-13
基金资助
国家自然科学基金（11372237）
Vibration response of sandwich panels with gradient metallic cellular core
Received date: 2016-06-30
Revised date: 2016-12-27
Online published: 2017-02-13
Supported by
National Natural Science Foundation of China (11372237)
肖登宝 , 赵桂平 . 金属梯度多孔夹芯板振动特性分析[J]. 航空学报, 2017 , 38(6) : 220576 -220576 . DOI: 10.7527/S1000-6893.2016.220576
The gradient metallic cellular material has gradient pore structures from one surface of the material to the other one resulting in varying material properties,such as mass density and elastic modulus. The vibration response of sandwich panels may be influenced when the traditional homogeneous cellular core is replaced by gradient metallic cellular core. Based on the high-order plate theory and considering the coupling effect between the density and the elastic module of gradient metallic cellular materials, the vibration equation for the sandwich panel with composite face sheet and gradient metallic cellular core is developed. The influence of three gradient types of cores (unidirectional distribution, positive gradient symmetrical distribution and negative gradient symmetrical distribution) on the natural frequency of sandwich panels is discussed. The vibration responses of sandwich panels with three gradient metallic cellular cores under the same impulsive loading are discussed.
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