A unified prediction solution for vibro-acoustic analysis of composite laminated elliptical shells immersed in air

作     者：GUAN Xian-lei ZHONG Rui QIN Bin WANG Qing-shan SHUAI Ci-jun 关先磊;钟锐;秦斌;王青山;帅词俊

作者机构：State Key Laboratory of High Performance Complex ManufacturingCentral South UniversityChangsha 410083China Joint International Research Laboratory of Key Technology for Rail Traffic SafetyCentral South UniversityChangsha 410075China National&Local Joint Engineering Research Center of Safety Technology for Rail VehicleCentral South UniversityChangsha 410075China Institute of Bioadditive ManufacturingJiangxi University of Science and TechnologyNanchang 330013China 

出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)

年 卷 期：2021年第28卷第2期

页      面：429-444页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：Project(51705537)supported by the National Natural Science Foundation of China Project(2018JJ3661) supported by the Natural Science Foundation of Hunan Province of China Project(ZZYJKT2018-11) supported by State Key Laboratory of High Performance Complex Manufacturing,China 

主　　题：composite laminated elliptical shells semi-analytical method vibration sound radiation 

摘      要：A semi-analytical method to conduct vibro-acoustic analysis of a composite laminated elliptical shell immersed in air is proposed.A variational method and multi-segment technique are used to formulate the dynamic *** sound radiation of the exterior fluid field is calculated by a spectral Kirchhoff–Helmholtz integral *** variables containing displacements and sound pressure are expanded by the combination of Fourier series and Chebyshev orthogonal *** collocation points are introduced to construct an algebraic system of acoustic integral equations,where these points are distributed on the roots of Chebyshev polynomials,and the non-uniqueness solution of system is eliminated by a combined Helmholtz *** examples for sound radiation problems of composite laminated elliptical shells are presented and individual contributions of the circumferential modes to the acoustical results of composite laminated elliptical shells are also *** effects of geometric and material parameters on sound radiation of composite laminated elliptical shells are also investigated.