Study on the Vibro-Acoustic Characteristics of a Vibration Isolation Mass Structure with Composite Braces

Di Jia; Fu Zhen Pang; Xu Chao Yin; Ye Xi

doi:10.4028/www.scientific.net/AMM.117-119.85

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 117-119Study on the Vibro-Acoustic Characteristics of a...

Study on the Vibro-Acoustic Characteristics of a Vibration Isolation Mass Structure with Composite Braces

Abstract:

In this paper a vibration isolation mass structure with composite braces is proposed to reduce noise and vibration transmission through the hull and internals of a double cylindrical shell. Influence of the various complicating effects such as vibration isolation mass’s cross section size or the layout location on the vibration isolation performance of composite braces structure are discussed. Besides, we also provide a composite structure form with high transmission loss due to the theory of vibration insulation of isolation mass and noise reduction of damping material. Study shows that composite braces structure combined the appropriate vibration isolation mass with viscoelastic material can effectively decrease the hull vibration and sound radiation in the mid-high frequency domain, which can significantly attenuate transmission of the plate flexural wave.

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Periodical:

Applied Mechanics and Materials (Volumes 117-119)

Pages:

85-88

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.117-119.85

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Online since:

October 2011

Authors:

Di Jia, Fu Zhen Pang, Xu Chao Yin, Ye Xi

Keywords:

Composite Plate, Vibration and Sound Radiation, Vibration Isolation Mass, Vibration Isolation Performance

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