Acoustic characteristics of a cylindrical shell coupled to an acoustic cavity under complex excitations
Source abstract
Abstract
In this research, we analyze the acoustic–vibration coupling of liquid-filled cylindrical shells under complex excitations. A calculation model to determine the acoustic characteristics and steady-state response of a cylindrical shell coupled to an acoustic cavity is proposed. The displacement and sound pressure of the cylindrical shell are described by a Chebyshev–Fourier series in three dimensions. The uncertain expansion coefficient is determined with a Rayleigh–Ritz model. The accuracy and convergence of this method are compared with those of the finite element method. The spring constraint is applied to simulate arbitrary boundary parameters. The impact of these parameters on the coupled natural frequency is analyzed. Finally, the steady-state response of a coupled system for various excitation parameters is analyzed.
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Research context
OpenAlex topics: Acoustic Wave Phenomena Research · Composite Structure Analysis and Optimization · Vibration and Dynamic Analysis
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Affiliations
National Key Laboratory on Ship Vibration and Noise , Wuhan 430033, China
Funding
National Natural Science Foundation of China
References (23)
Show source-provided references
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