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Structural-acoustic coupling characteristics of honeycomb sandwich plate based on parameter sensitivity analysis

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Abstract

The structural-acoustic coupling model for isotropic thin elastic plate was extended to honeycomb sandwich plate (HSP) by applying Green function method. Then an equivalent circuit model of the weakly-strongly coupled system was proposed. Based on that, the estimation formulae of the coupled eigenfrequency were derived. The accuracy of the theoretical predictions was checked against experimental data, with good agreement achieved. Finally, the effects of HSP design parameters on the system coupling degree, the acoustic cavity eigenfrequency, and sound pressure response were analyzed. The results show that mechanical and acoustical characteristics of HSP can be improved by increasing the thickness of face sheet and reducing the mass density of material.

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Authors and Affiliations

  1. Key Laboratory of Special Power Supply, Chongqing Communication College, Chongqing, 400035, China

    Sheng-chun Wang  (王盛春), Wei-dong Shen  (沈卫东), Jia-feng Xu  (徐嘉锋) & Yun Li  (李赟)

Authors
  1. Sheng-chun Wang  (王盛春)
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  2. Wei-dong Shen  (沈卫东)
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  3. Jia-feng Xu  (徐嘉锋)
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  4. Yun Li  (李赟)
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Corresponding author

Correspondence to Sheng-chun Wang  (王盛春).

Additional information

Foundation item: Project(51105375) supported by the National Natural Science Foundation of China; Project(CSTC2010BB8204) supported by Chongqing Natural Science Foundation, China

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Wang, Sc., Shen, Wd., Xu, Jf. et al. Structural-acoustic coupling characteristics of honeycomb sandwich plate based on parameter sensitivity analysis. J. Cent. South Univ. 21, 252–261 (2014). https://doi.org/10.1007/s11771-014-1936-1

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  • DOI: https://doi.org/10.1007/s11771-014-1936-1

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