Power transmission through double-walled laminated composite panels considering porous layer-air gap insulation

doi:10.1007/s10483-014-1877-7

Applied Mathematics and Mechanics (English Edition) ›› 2014, Vol. 35 ›› Issue (11): 1447-1466.doi: https://doi.org/10.1007/s10483-014-1877-7

Power transmission through double-walled laminated composite panels considering porous layer-air gap insulation

M. H. SHOJAEIFARD¹, R. TALEBITOOTI¹, B. RANJBAR², R. AHMADI²

1. School of Mechanical Engineering, Iran University of Science & Technology, Teheran 16844, Iran;
2. School of Automotive Engineering, Iran University of Science & Technology, Teheran 16844, Iran

收稿日期:2014-02-17 修回日期:2014-05-29 出版日期:2014-11-01 发布日期:2014-11-01
通讯作者: R. TALEBITOOTI, Ph. D., E-mail: rtalebi@iust.ac.ir E-mail:rtalebi@iust.ac.ir

Power transmission through double-walled laminated composite panels considering porous layer-air gap insulation

M. H. SHOJAEIFARD¹, R. TALEBITOOTI¹, B. RANJBAR², R. AHMADI²

1. School of Mechanical Engineering, Iran University of Science & Technology, Teheran 16844, Iran;
2. School of Automotive Engineering, Iran University of Science & Technology, Teheran 16844, Iran

Received:2014-02-17 Revised:2014-05-29 Online:2014-11-01 Published:2014-11-01

摘要/Abstract

摘要： The acoustic behavior of double-walled laminated composite panels consisting of two porous and air gap middle layers is studied within the classical laminated plate theory (CLPT). Thus, viscous and inertia coupling in a dynamic equation, as well as stress transfer, thermal and elastic coupling of porous material are based on the Biot theory. In addition, the wave equations are extracted according to the vibration equation of composite layers. The transmission loss (TL) of the structure is then calculated by solving these equations simultaneously. Statistical energy analysis (SEA) is developed to divide the structure into specific subsystems, and power transmission is extracted with balancing power flow equations of the subsystems. Comparison between the present work and the results reported elsewhere shows excellent agreement. The results also indicate that, although favorable enhancement is seen in noise control particularly at high frequencies, the corresponding parameters associated with fluid phase and solid phase of the porous layer are important on TL according to the boundary condition interfaces. Finally, the influence of composite material and stacking sequence on power transmission is discussed.

关键词: laminated composite plate, statistical energy analysis (SEA), porous material, sound transmission loss, double panel

Abstract: The acoustic behavior of double-walled laminated composite panels consisting of two porous and air gap middle layers is studied within the classical laminated plate theory (CLPT). Thus, viscous and inertia coupling in a dynamic equation, as well as stress transfer, thermal and elastic coupling of porous material are based on the Biot theory. In addition, the wave equations are extracted according to the vibration equation of composite layers. The transmission loss (TL) of the structure is then calculated by solving these equations simultaneously. Statistical energy analysis (SEA) is developed to divide the structure into specific subsystems, and power transmission is extracted with balancing power flow equations of the subsystems. Comparison between the present work and the results reported elsewhere shows excellent agreement. The results also indicate that, although favorable enhancement is seen in noise control particularly at high frequencies, the corresponding parameters associated with fluid phase and solid phase of the porous layer are important on TL according to the boundary condition interfaces. Finally, the influence of composite material and stacking sequence on power transmission is discussed.

Key words: laminated composite plate, double panel, sound transmission loss, porous material, statistical energy analysis (SEA)

中图分类号:

O347

M. H. SHOJAEIFARD;R. TALEBITOOTI;B. RANJBAR;R. AHMADI. Power transmission through double-walled laminated composite panels considering porous layer-air gap insulation[J]. Applied Mathematics and Mechanics (English Edition), 2014, 35(11): 1447-1466.

参考文献

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Power transmission through double-walled laminated composite panels considering porous layer-air gap insulation

Power transmission through double-walled laminated composite panels considering porous layer-air gap insulation

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