Liang Yang1,2, Jie Zhang1, Jinfeng Xia1, Siwen Zhang1, Yang Yang3, Zhigang Chu2,*
Sound & Vibration, Vol.58, pp. 171-183, 2024, DOI:10.32604/sv.2024.056968
- 21 October 2024
Abstract Helmholtz resonators are widely used to control low frequency noise propagating in pipes. In this paper, the elastic bottom plate of Helmholtz resonator is simplified as a single degree of freedom (SDOF) vibration system with acoustic excitation, and a one-dimensional lumped-parameter analytical model was developed to accurately characterize the structure-acoustic coupling and sound transmission loss (STL) of a Helmholtz resonator with an elastic bottom plate. The effect of dynamical parameters of elastic bottom plate on STL is analyzed by utilizing the model. A design criterion to circumvent the effect of wall elasticity of Helmholtz resonators More >
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