Study on Sound Transmission Loss of Lightweight FGM Sandwich Plate

  • C. Li
  • Z. ChenEmail author
  • Y. Jiao
Conference paper
Part of the Mechanisms and Machine Science book series (Mechan. Machine Science, volume 75)


Lightweight sandwich structure is widely used to prepare the body of moving vehicle, which requires its light weight, high mechanical strength, good sound transmission loss and other multi-functional characteristics. Functionally gradient materials can effectively reduce the stress mutation caused by mismatching of material properties, so the mechanical strength of the structure can be improved. The main objective of this research work is focused on sound transmission loss analysis of ribbed plate functionally graded material (FGM) sandwich plates filled with air, wherein two types of FGM sandwich structures are considered, which include one with FGM face sheets and homogeneous metal core, and the other with FGM core and homogeneous face sheets. Firstly, the acoustic projection loss of the sandwich panel filled with a cavity is analyzed by simulation software, and compared with the existing numerical results, the validity of the model is verified. Based on the simulation model, the effects of boundary conditions, the spacing between the stiffeners, the gradient index of functionally graded materials, and the thickness ratio of the panels to the stiffeners were analyzed.


Sandwich structure Stiffened plate FGM 



This work presented here was supported by National Key R&D Program of China under the contract number 2017YFB1300600, and by the National Natural Science Foundation of China under the contract numbers 11772103 and 61304037.


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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.Harbin Institute of TechnologyNan Gang District, HarbinChina

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