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《Acta Acustica》 2000-01
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Sound radiation from finite ring-stiffened cylindrical shells coated with viscoelastic layer

CHEN Wei;LUO Dongping(Huazhong University of Science and Technology Wuhan 430074)ZHANG Shun;CHEN Xiaoning(WuHan Second Ship Design and Research Institute Wuhan 430064)  
Sound radiation from finite ring-stiffened cylindrical shell coated with viscolelastic layed are discussed. Theviscoelastic layer motion is described by means of Navier equations. Numerical results are given that exhibit the influenceof viscoelastic layer on the vibroacoustic behavior of the shell. From the viewpoint of noise-reducing, some viscoelasticlayer's parameters are taken into account: Young modulus, the Possion ratio, the density and the structural loss factor.
【CateGory Index】: U674.76
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