A NOVEL SEMI-ANALYTICAL METHOD FOR SOLVING ACOUSTIC RADIATION FROM LONGITUDINALLY STIFFENED INFINITE NON-CIRCULAR CYLINDRICAL SHELLS IN WATER

作     者：XiangYu HuangYuying 

作者机构：DepartmentofAutomotiveEngineeringGuangxiUniversityofTechnologyLiuzhou545006China CollegeofCivilEngineeringandMechanicsHuazhongUniversityofScienceandTechnologyWuhan430074China 

出 版 物：《Acta Mechanica Solida Sinica》 (固体力学学报（英文版）)

年 卷 期：2005年第18卷第1期

页      面：1-12页

核心收录：

学科分类：08[工学] 080102[工学-固体力学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：Project supported by the National Natural Science Foundation of China(No.10172038) the Doctoral Foundation ofthe National Education Ministry(No.20040487013)and the Natural Science Foundation of Guangxi(No.0339019) 

主　　题：sound-structure interaction stifened non-circular cylindrical shell vibration and acoustic radiation semi-analytical method transfer matrix method 

摘      要：Based on the extended homogeneous capacity high precision integration method and the spectrum method of virtual boundary with a complex radius vector, a novel semi-analytical method, which has satisfactory computation efectiveness and precision, is presented for solving the acoustic radiation from a submerged infnite non-circular cylindrical shell stifened by longitudinal ribs by means of the Fourier integral transformation and stationary phase method. In this work, besides the normal interacting force, which is commonly adopted by some researchers, the other interacting forces and moments between the longitudinal ribs and the non-circular cylindrical shell are considered at the same time. The efects of the number and the size of the cross-section of longitudinal ribs on the characteristics of acoustic radiation are investigated. Numerical results show that the method proposed is more efcient than the existing mixed FE-BE method.