Sound Transmission Loss Test and Theoretical Simulation Analysis of Sealing Strip Under Low Vacuum Environment
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School of Physics Science and Engineering,Tongji University,Shanghai 200092,China

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U270.16;TB533.2

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    Abstract:

    Based on the sound insulation theoretical model and experimental data of the double-layer plate structure, the sound transmission loss of the sealing strip was investigated in different air pressure. The results indicate that the air density decreases with the decrease of the air pressure in the source room, which leads to the increase of the sound transmission loss of the sealing strip. At the same time, the decrease of air pressure causes the membrane stresses of the sealing strip and then improves the material stiffness, which leads to the further increase of the sound transmission loss in the stiffness area. Because the sound insulation performance of the sealing strip is affected by both the air density and the pressure difference, it is necessary to pay attention to the change in the sound insulation performance when using the sealing strip in special situations such as high altitude.

    Reference
    [1] STENTI A, MOENS D, DESMET W. Dynamic modeling of car door weather seals: a first outline[C]//Proceedings of ISMA 2004.[
    [2] ANDRO B , SEBASTIEN C , DIALLO A , et al. Prediction of sound transmission through automotive door seal systems[J]. The Journal of the Acoustical Society of America, 2008, 123(5):3534.
    [3] WON W J , SHIN J O. The influence of vehicle elements to aspiration wind noise[C]//SAE 950624. Michigan:SAE,1995:21-29.
    [4] KOIKE M, FUKUMITSU Y. Sound transmission loss of weatherstrips[J]. Proceedings of International Symposium on Automotive Technology & Automation, 1990, 22(2) :1155.
    [5] OHTA M, NAGAI K, HATAKEYAMA K. A unified theory of evaluating the sound shielding characteristic of general n-fold walls and its experimental confirmation : a system theoretical approach to the sound and vibration environment part I[J]. Journal of the Acoustical Society of Japan, 1979, 35:118.
    [6] 李奇.车门密封带隔声性能测量方法的研究[D]. 上海:同济大学声学所,2009.
    [7] XIN F X, LU T J, CHEN C Q. Vibroacoustic behavior of clamp mounted double-panel partition with enclosure air cavity[J].The Journal of the Acoustical Society of America,2008,124(6):3604.
    [8] XIN F X, LU T J. Analytical and experimental investigation on transmission loss of clamped double panels: implication of boundary effects[J].The Journal of the Acoustical Society of America,2009,125(3):1506.
    [9] XIN F X, LU T J, CHEN C Q. Sound transmission through simply supported finite double-panel partitions with enclosed air cavity[J].Journal of Vibration and Acoustics,2010,132(1):1.
    [10] DONNELL L H.Stability of thin-walled tubes under torsion[R].Pasadena:NASA,1935.
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GONG Yinwen, GE Jianmin. Sound Transmission Loss Test and Theoretical Simulation Analysis of Sealing Strip Under Low Vacuum Environment[J].同济大学学报(自然科学版),2021,49(4):577~584

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History
  • Received:July 26,2020
  • Online: May 11,2021
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