Transmission Analysis of Vibrational Energy in Orthotropic Thin Plates

被引：1
|
作者：
He L. [1 ]
Chen T. [1 ]
Chen C. [1 ]
机构：
[1] State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, Xi'an
来源：
Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University | 2019年 / 53卷 / 03期
关键词：
Energy finite element analysis; Energy transmission; Orthotropic thin plate; Structural intensity; Vibration;
D O I：
10.7652/xjtuxb201903008
中图分类号：
学科分类号：
摘要：
To solve the problem of medium-high frequency vibration of orthotropic thin plates, an analytical method for the transmission of vibrational energy based on structural intensity (SI) was proposed. First, the energy density control equation of the orthotropic thin plate was discretized using finite element method. Then the energy finite element equation was derived. To verify the validity of the equation, numerical analyses were performed and compared with classical modal solutions. Further, the structural intensity field was obtained by solving the energy finite element equation. Besides, the transmission of vibrational energy was presented visually by SI streamline visualization. Moreover, the influence of different local damping distributions on the vibrational energy transmission in orthotropic thin plates was analyzed. The results of analysis show that the properties of orthotropic materials gave priority to vibrational energy flow in the direction, where the bending stiffness was lower. In summary, the local damping distribution plays an important part in the distribution of vibrational energy and flow direction. This study is instructive to analyze the vibration characteristics of engineering and to optimize the damping position. © 2019, Editorial Office of Journal of Xi'an Jiaotong University. All right reserved.
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页码：50 / 55
页数：5
相关论文
共 11 条
  • [1] Nefske D.J., Sung S.H., Power flow finite element analysis of dynamic systems: basic theory and application to beams, Journal of Vibration, Acoustics, Stress, and Reliability in Design, 111, 1, pp. 94-100, (1989)
  • [2] Bouthier O.M., Bernhard R.J., Models of space-averaged energetics of plates, AIAA Journal, 30, 3, pp. 616-623, (1992)
  • [3] Bouthier O.M., Bernhard R.J., Simple models of the energetics of transversely vibrating plates, Journal of Sound and Vibration, 182, 1, pp. 149-164, (1995)
  • [4] Pard H., Hong S.Y., Kil H.G., Power flow model of flexural waves in finite orthotropic plates, Journal of Sound and Vibration, 264, 1, pp. 203-224, (2003)
  • [5] Xie M., Chen H., Wu J., Energy finite element analysis to high-frequency bending vibration in cylindrical shell, Journal of Xi'an Jiaotong University, 42, 9, pp. 1113-1116, (2008)
  • [6] Zhu X., Li T., Zhao Y., Et al., Visualization research on the power flow characteristics of damaged structures based on the finite element method, Journal of Mechanical Engineering, 45, 2, pp. 132-137, (2009)
  • [7] Zhang M., Chen H., Zhu D., Et al., Stochastic parameter energy finite element analysis for high-frequency flexural vibration beam, Journal of Xi'an Jiaotong University, 47, 11, pp. 76-80, (2013)
  • [8] Petrone G., De Vendittis M., De Rosa S., Et al., Numerical and experimental investigations on structural intensity in plates, Composite Structures, 140, pp. 94-105, (2016)
  • [9] Wang B., Li D.X., Jiang J.P., Et al., A judging principle of crucial vibrational transmission paths in plates, Journal of Sound and Vibration, 380, pp. 146-164, (2016)
  • [10] Liu Z., Niu J., Zhou Y., Energy density analysis of irregular shaped plates based on the power flow finite element method, Journal of Vibration and Sound, 36, 16, pp. 188-194, (2017)
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