Abstract：Based on the Riccati transfer matrix method and high precision intergration scheme combined with the extended homogeneous capacity technique, a new semi-analytical and semi-numerical method is presented for analyzing the vibro-acoustic interaction problems of ring-stiffened circular shells with finite length in underwater by solving a set of first order differential equations. This method is different from previous analytical method and FE-BE method. An analytical expression of the acoustic pressure is derived by linear combination of the basic functions which satisfies the Helmholtz equation. The vibro-acoustic interaction problem can be transferred into solving a linear algebraic equations in all acoustic pressure coefficients by matching points along the generating line of the shell by means of the continuity conditions of the normal velocity on the interface between the acoustic field and shell. The obtained numerical results show this method is efficient. It can also be extended to analyze the vibro-acoustic interaction problems of ring-stiffened conical shells and jointed conical-cylindrical shells with finite length.
曹 雷 马运义 黄玉盈 . 基于Riccati传递矩阵法分析水下有限长环肋圆柱壳的声辐射性能[J]. , 2009, 28(9): 149-154.
CAO Lei MA Yunyi HUANG Yuyin. ANALYSIS OF ACOUSTIC RADIATION OF THE RING-STIFFENED CYLINDRICAL SHELL WITH FINITE LENGTH IN UNDERWATER BASED ON RICCATI TRANSFER MATRIX METHOD. , 2009, 28(9): 149-154.
2009, Vol. 28 
