Journal of Jilin University(Engineering and Technology Edition) ›› 2025, Vol. 55 ›› Issue (9): 3079-3088.doi: 10.13229/j.cnki.jdxbgxb.20250566

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Bionic structure design and acoustic and mechanical properties of expressway sound barrier panels

Zheng-lei YU1,2(),Chao-lei ZHANG2,Li-xin CHEN2,Ping HU3(),Tao XU3,Bin-kai GUO2   

  1. 1.State Key Laboratory of Automotive Simulation and Control，Jilin University，Changchun 130022，China
    2.Key Laboratory of Bionic Engineering，Ministry of Education，Jilin University，Changchun 130022，China
    3.Huanbo Jingwei New Material Technology （Weihai） Co. ，Ltd. ，Weihai 255000，China
  • Received:2025-05-04 Online:2025-09-01 Published:2025-11-14
  • Contact: Ping HU E-mail:zlyu@jlu.edu.cn;641815930@qq.com

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Abstract:

To address the inadequate performance of traditional sound barriers， two bionic sound barrier panels were designed based on the armadillo shell and honeycomb structure as prototypes. The performance of these panels was studied and analyzed through simulation and validated by field testing. The results indicate that the sound insulation performance of the bionic sound barrier panels significantly surpasses that of traditional steel panels. Specifically， the sound insulation of the bionic armadillo shell sound barrier panel reaches 37.711 dB， an increase of 38.1%. Furthermore， in this paper a parametric design was conducted on the height of the protrusions and the overall thickness of the bionic sound barrier panels. Field tests date show that the insertion loss of the bionic sound barrier is 23.3 dB， which is an improvement of 50.3% over traditional sound barriers. This design achieves a balance between sound insulation performance， mechanical performance， and cost， providing a new design concept and research method for highway sound barrier panels.

Key words: engineering bionics, expressway, sound barrier, noise reduction performance, finite element simulation, insertion loss

CLC Number: 

  • TB52

Fig.1

Bionic sound barrier plate design"

Fig.2

Design parameters of bionic sound barrier panels （unit：mm）"

Fig.3

Simulation design of bionic sound barrier panels"

Fig.4

Schematic diagram of the positions of reference points and the receiving points for the sound barrier panels test on the expressway"

Fig.5

Comparison of cell and sound insulation performance of bionic sound barrier panels"

Fig.6

Comparison of sound pressure levels of the bionic sound barrier panels"

Fig.7

Comparison of parameters of bionic sound barrier panels"

Table 1

Sound insulation values of sound barrier panels"

声屏障板SPTBHS

BAS

-H5-Z50

BAS

-H3-Z50

BAS

-H30-Z50

BAS

-H5-Z40

隔声量/dB27.30337.53537.71134.73937.99136.596

Fig.8

Comparison of structural strength parameters of bionic sound barrier panels"

Table 2

Surfaces normal deflection and maximum stress of different thickness"

风压/PaZ=50 mm面法线挠度/mmZ=40 mm面法线挠度/mmZ=50 mm最大应力/MPaZ=40 mm最大应力/MPa
P1=5000.289 11.4114.0195.357
P2=7500.4322.3526.01318.210
P3=1 2500.7234.71110.05030.350

Fig.9

Schematic diagram of the structure installation of the bionic sound barrier plate"

Fig.10

On-site installation of the bionic sound barrier panels structure by workers"

Fig.11

On-site detection of sound pressure level of sound barrier insertion loss on expressways"

Table 3

Detection of insertion loss of expressway sound barriers"

类型参考点2接收点2参考点1接收点1插入损失
新型高速公路声屏障92.175.692.352.523.3
传统高速公路声屏障92.175.696.564.515.5
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