Research Progress of Acoustic Black Hole in Vibration and Noise Reduction
Acoustic black hole structure,as a lightweight,efficient and wide-band elastic wave control method,has a broad application prospect in the field of vibration and noise reduction.Based on the acoustic black hole effect,the purpose of this paper is to use lightweight and high efficient broadband vibration and noise reduction materials to solve the engineering sound and vibration problems.This paper introduces the research progress of single-layer and double-layer acoustic black hole beam and additional acoustic black hole vibration absorption beam,acoustic black hole indentation plate and inner engraved plate,acoustic black hole cylindrical shell and acoustic black hole pipeline.Combined with the shortcomings in the current research and application of acoustic black hole vibration and noise reduction,the problems existing in the field of acoustic black hole vibration and noise reduction and the future research direction are predicted,which provides some reference for the research and application of acoustic black hole vibration and noise reduction.
elastic waveacoustic black holelightweight structuresengineering structurevibration and noise reduction
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