Vibro-acoustic analysis of a coach platform under random excitation
作者： Mehran Sadri , Davood Younesian
DOI: 10.1016/J.TWS.2015.07.008
关键词: Time domain 、 Excitation 、 Acoustics 、 Numerical laplace transform 、 Sound pressure 、 Inversion (meteorology) 、 Air cavity 、 Parametric statistics 、 Engineering
摘要: Abstract Vibro-acoustic analysis of a rail vehicle cabin is presented in this paper. Vehicle modeled by an air cavity coupled to flexible floor panel. Analytical procedure employed predict the structural-borne noise model generated random excitation In study, natural frequencies system are obtained and then sound pressure field inside analytically determined. order find dynamic responses time domain, Durbin's numerical Laplace transform inversion algorithm employed. Convergence verified eventually parametric study carried out investigate effects irregularity speed on frequency responses.
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