CHEN Mei-xia, LUO Dong-ping, CHEN Xiao-ning, SHEN Rui-xi. Analytical Solution of Radiation Sound Pressure of Double Cylindrical Shells in Fluid Medium[J]. Applied Mathematics and Mechanics, 2002, 23(4): 415-421.
 Citation: CHEN Mei-xia, LUO Dong-ping, CHEN Xiao-ning, SHEN Rui-xi. Analytical Solution of Radiation Sound Pressure of Double Cylindrical Shells in Fluid Medium[J]. Applied Mathematics and Mechanics, 2002, 23(4): 415-421.

# Analytical Solution of Radiation Sound Pressure of Double Cylindrical Shells in Fluid Medium

• Rev Recd Date: 2001-12-26
• Publish Date: 2002-04-15
• The Donnell theory of shell was applied to describe shell motion. The inner and outer shells were stiffened by transverse components. Using deformation harmonious conditions of the interface, the effects of stiffeners were treated as reverse forces and moments on the double cylindrical shell. In the acoustic field produced by vibration and sound radiation of the double shell, the structure dynamic equation, Helmholtz equation in the fluid field and the continuity conditions of the surface of fluid-structure compose the vibration equation coupled by the sound-fluid-structure. The extract of acoustic pressure comes down to the extract of coupling vibration equation. The near field acoustic pressure can be solved directly by complicated calculational methods.
•  [1] Yoshikawa S,Willams E G,Washburn K B.Vibration of two concentric submerged cylindrical shells coupled by the contained fluid[J].J Acoust Soc Amer,1994,95(6):3273-3286. [2] Yoshikawa S.Fluid-structure coupling by the entrained fluid in submerged concentric double-shell vibration[J].J Acoust Soc Jp(E),1993,14(2):99-111. [3] 骆东平,张玉红.环肋增强柱壳振动特性分析[J].中国造船,1989,(1):64-74. [4] El-Raheb M,Wagner P.Acoustic radiation from a shell with internal structures[J].J Acoust Soc Amer,1989,85(6):2452-2463. [5] Guo Y P.Sound scattering by bulkheads in cylindrical shells[J].J Acoust Soc Amer,1994,95(5):2550-2559. [6] 陈越澎.加筋柱壳的声学设计方法研究[D].博士学位论文.武汉:华中理工大学,1999.

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