Sound transmission from stiffened double laminated composite plates |
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| Institution: | 1. School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, PR China;2. Beijing Institute of Spacecraft System Engineering, Beijing 100094, PR China;3. School of Maritime, ShanDong JiaoTong University, Jinan 264200, PR China;1. Key Laboratory of Noise and Vibration Research, Institute of Acoustics, Chinese Academy of Sciences, 100190 Beijing, PR China;2. Key Laboratory of Aeroacoustics and Dynamics, Aircraft Strength Research Institute, 710065 Xian, PR China;1. Facult des Sciences et Techniques de Fès, Laboratoire de gènie mècanique, Route d’Immouzer, BP 2202 Fès, Morocco;2. École Centrale de Lyon, 36 Avenue Guy de Collongue, 69134 Écully Cedex, France;3. École Mohammadia d’Ingènieurs, Universitè Mohammed V, BP 765 Agdal, Rabat, Morocco;4. École Normale Supérieure de Cachan, Universitè Paris Saclay, Avenue du Président Wilson, 94230 Cachan, France;1. School of Mechanical Engineering, Iran University of Science and Technology, Narmak, Tehran, Iran;2. School of New Technologies, Iran University of Science and Technology, Narmak, Tehran, Iran;1. School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;2. Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, SO16 7QF, United Kingdom;3. College of Engineering, Huazhong Agricultural University, Wuhan 430070, China;1. Structural Technologies Division, CSIR-National Aerospace Laboratories, Bangalore 560017, India;2. Department of Aerospace Engineering, Indian Institute of Technology – Madras, Chennai 600036, India;1. State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, China;2. Institute of Sound and Vibration Research, University of Southampton, Southampton, UK;3. School of Naval Architect and Ocean Engineering, University of Ulsan, Ulsan, South Korea |
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| Abstract: | An analytical model is developed to investigate the sound transmission loss from orthogonally rib-stiffened double laminated composite plates structure under a plane sound wave excitation, in which first order shear deformation theory is presented for laminated composite plates. By using the space harmonic approach and virtual work principle, the sound transmission loss is described analytically. The validity and feasibility of the model are verified by comparing the present theoretical predictions with numerical results published previously. The influences of structure geometrical parameters on sound transmission loss are subsequently presented. Through numerical results, it can be concluded that the proposed analytical model is accurate and simple in solving the vibroacoustic behavior of an orthogonally rib-stiffened double laminated composite plates. |
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| Keywords: | Laminated composite plate First order shear deformation theory Vibroacoustic Sound transmission |
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