玻璃纤维增强塑料夹层板振动能量流可视化研究

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摘要

为探索复合材料结构在外部激励作用下的振动能量传递及分布特性，基于结构声强法对玻璃纤维增强塑料夹层板的振动能量可视化技术进行了研究。基于结构声强概念，结合复合材料结构层合理论推导了玻璃纤维增强塑料夹层板的结构声强解析表达式；给出了基于有限元数值方法的结构声强可视化计算实现流程，利用Python和Matlab语言编写了相应计算程序；接着从固有频率、振型及结构声强矢量三个方面验证了所提出可视化程序的有效性；以玻璃纤维增强塑料夹层板为例，利用结构声强技术提供的图形信息实现了激励源定位及振动能量传递特性的可视化分析；最后提取了剪切分量、扭转分量和弯曲分量对结构声强矢量的贡献情况，直观展示了剪切分量在振动能量传递过程中的决定性作用。

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	蔡延年1
	于洪亮1
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	闫锦2
	廖建彬2

关键词 ：玻璃纤维增强塑料, 夹层板, 振动能量流, 结构声强, 有限元法

Abstract：In order to explore the vibration energy flow and distribution characteristics of composite structures under external excitation, the vibration energy visualization technology for a glass fiber reinforced plastic(GFRP) sandwich plate was studied based on the structural intensity method.The structural intensity vectors of the GFRP sandwich plate element were calculated according to the laminate theory based on the concept of structural intensity.The realization process of structural intensity visualization based on finite element method was presented by virtue of the Python and Matlab Language.The calculated natural frequencies, mode shapes and structural intensity vectors were compared with the references to validate the proposed numerical method.The analysis of the GFRP sandwich plate gives an example to show the graphic information of structure intensity field which provides the location of excitation source and the distribution characteristics of vibration energy flow for composite structures.The contributions of the shear component, twist component and bending component to the structural intensity vectors were extracted which intuitively show the dominant role of shear component in the energy transfer of vibration.

Key words： glass fiber reinforced plastics sandwich panel vibration energy flow structural intensity finite element method

收稿日期: 2018-10-16 出版日期: 2020-03-15

引用本文:

蔡延年1，于洪亮1,2，闫锦2，廖建彬2. 玻璃纤维增强塑料夹层板振动能量流可视化研究[J]. 振动与冲击, 2020, 39(6): 243-248.
CAI Yannian1, YU Hongliang1,2, YAN Jin2, LIAO Jianbin2 . Vibration energy flow visualization of a glass fiber reinforced plastics sandwich panel. JOURNAL OF VIBRATION AND SHOCK, 2020, 39(6): 243-248.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2020/V39/I6/243

[1] 沈观林，胡更开，刘彬. 复合材料力学（第2版）[M]. 北京：清华大学出版社，2013.
SHEN Guanlin， HU Gengkai，LIU Bin. Mechanics of composite materials (second edition) [M]. Beijing：Tsinghua university press, 2013, 16
[2] MIAO WANG, ZHI-MIN LI, PIZHONG QIAO. Vibration analysis of sandwich plates with carbon nanotube-reinforced composite face-sheets, Composite Structures [J]. Composite Structures, 2018, 200: 799-809.
[3] ÖMER C. Vibration of laminated composite panels and curved plates with different types of FGM composite constituent [J]. Composites Part B Engineering, 2017, 122:89-108.
[4] 邸馗，茅献彪. 简支边界条件下超椭圆蜂窝夹芯板的自由振动 [J]. 复合材料学报， 2017，34(8): 1817-1824.
DI Kui, MAO Xianbiao. Free vibration analysis of simply supported super elliptical honeycomb panels [J] .Acta Materiae Compositae Sinica, 2017, 34(8): 1817-1824 .
[5] 郝颖，虞爱氿. 层状复合材料矩形截面圆柱螺旋弹簧自由振动特性的研究[J]. 振动与冲击，2012，31(22): 105-111.
Hao Ying, Yu Aimin. Study on the free vibration behavior of laminated composite cylindrical helical springs with rectangular cross-section. Journal of vibration and shock, 2012, 31(22): 105-111.
[6] NOISEUX D U. Measurement of power flow in uniform beams and plates[J]. Journal of the Acoustical Society of America ,1970, 47(1):238-247.
[7] GAVRIC L, PAVIC G. A finite element method for computation of structural intensity by the normal mode approach[J]. Journal of Sound and Vibration, 1993, 164(1):29-43.
[8] LI Y J, LAI J C S. Prediction of surface mobility of a finite plate with uniform force excitation by structural intensity[J]. Applied Acoustics, 2000, 60(3):371-383.
[9] XU X D, LEE H P, WANG Y Y, et al. The energy flow analysis in stiffened plates of marine structures[J]. Thin-Walled Structures, 2004, 42(7): 979-994.
[10] XU X D, LEE H P, LU C, et al. Streamline representation for structural intensity fields[J]. Journal of Sound and Vibration, 2005, 280(1):449-454.
[11] XU X D, LEE H P, LU C. The structural intensities of composite plates with a hole[J]. Composite Structures, 2004, 65(3):493-498.
[12] LIU Z S, LEE H P, LU C. Structural intensity study of plates under low-velocity impact[J]. International Journal of Impact Engineering, 2005, 31(8):957-975.
[13] CIEDLIK J. Vibration energy flow in rectangular plates[J]. Journal of Theoretical and Applied Mechanics, 2004, 42(1):195-212.
[14] CIEDLIK J. Vibration energy flow in ribbed plates[J]. Mechanics, 2006,25(3):119-123.
[15] CHO D S, CHOI T M, KIM J H, et al. Structural intensity analysis of stepped thickness rectangular plates utilizing the finite element method [J]. Thin-Walled Structures, 2016, 109:1-12.
[16] TRAN T Q N, LEE H P, LIM S P. Structural intensity analysis of thin laminated composite plates subjected to thermally induced vibration[J]. Composite Structures, 2007, 78(1):70-83.
[17] PETRONE G, VENDITTS M D, ROSA S D, et al. Numerical and experimental investigations on structural intensity in plates[J]. Composite Structures, 2016, 140:94-105.
[18] 谢基榕，吴文伟，沈顺根. 基于有限元的功率流分析方法及实现[J]. 船舶力学, 2009, 13(1):144-149.
XIE Jirong, WU Wenwei, SHEN Shungen. Power flow analysis based on FEM: theory and implementation[J], Journal of Ship Mechanics, 2009, 13(1):144-149.
[19] 李凯，黎胜，赵德有. 耦合板结构振动波传递及能量分布可视化研究[J]. 船舶力学, 2011, 15(4):419-426.
LI kai, LI Sheng, ZHAO Deyou. Visualizing vibration wave flow characteristics in plate structures by vibration intensity techniques[J], Journal of Ship Mechanics, 2011, 15(4):419-426.
[20] 王迪，朱翔，李天匀，等. 基于能量有限元法的损伤板结构振动分析[J]. 振动与冲击, 2017, 36(11): 73-78.
Wang Di，Zhu Xiang，Li Tianyun, et al. Vibration analysis of plate damage based on energy finite element method. Journal of vibration and shock, 2017, 36(11): 73-78.
[21] 王东方.基于结构声强法的层合结构振动声学特性及优化控制[D].同济大学,2008.
WANG Dongfang. Acoustics optimization and vibration characterization of laminated using the structural intensity method. [D] Tongji University,2008.
[22] PETRONE G, D’ALESSANDRO V, FRANCO F, et al. Numerical and experimental investigations on the acoustic power radiated by Aluminium Foam Sandwich panels[J]. Composite Structures, 2014, 118(1):170-177.