Izvorni znanstveni članak
https://doi.org/10.31534/engmod.2021.1.ri.04f
Sensitivity Analysis for Coupled Structural-Acoustic System with Absorbing Material Using FEM/BEM
Xiuyun Chen
; School of Architectural Engineering, Huanghuai University, Zhumadian 463003, Henan, P.R. CHINA
Ling Yao
; College of Architecture and Civil Engineering, Xinyang Normal University, Xinyang, 464000, CHINA
Ruhui Cheng
; College of Architecture and Civil Engineering, Xinyang Normal University, Xinyang, 464000, CHINA
Xiaohui Yuan
; College of Architecture and Civil Engineering, Xinyang Normal University, Xinyang, 464000, CHINA
Yanming Xu
; CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei, 230026, CHINA
Sažetak
Since the acoustic impedance in water cannot be neglected with respect to the mechanical impedance, the acoustic radiation caused by the vibration of structures in the compressible fluid would react to the structure. Therefore, the fluid-structure interaction needs to be considered. The finite element method is used for structure vibration analysis and the boundary element method for acoustic analysis. Sound absorption materials are used to reduce the scattering sound field in the reference region. The sensitivity analysis of a fully coupled structural-acoustic system is proposed. Numerical tests verify the correctness of the proposed algorithm.
Ključne riječi
Boundary element method; Finite element method; Sensitivity analysis; Absorbing material.
Hrčak ID:
258687
URI
Datum izdavanja:
12.2.2021.
Posjeta: 780 *