基于间接边界元法开孔板声辐射研究  

Study on Acoustic Radiation of Perforated Plate Using Indirect Boundary Element Method

作　　者：徐明林 张利华 皮君涛 葛泽昊 刘聪睿 周波[1] XU Minglin;ZHANG Lihua;PI Juntao;GE Zehao;LIU Congrui;ZHOU Bo(State Key Laboratory of Structural Analysis for Industrial Equipment,School of Naval Architecture Engineering,Dalian University of Technology,Dalian 116024,Liaoning,China;Yantai CIMC Raffles Offshore Co.,Ltd.,Yantai 264000,Shandong,China)

机构地区：[1]大连理工大学工程装备结构分析国家重点实验室运载工程与力学学部船舶工程学院,辽宁大连116024 [2]烟台中集来福士海洋工程有限公司,山东烟台64000

出　　处：《噪声与振动控制》2022年第4期52-57,共6页Noise and Vibration Control

基　　金：辽宁省“兴辽英才计划”资助项目(XLYC1807190)。

摘　　要：针对开孔板结构进行声学数值模拟。首先利用有限元软件Patran进行开孔板建模、网格生成以及模态分析,并将模型和模态结果导入声学仿真软件Virtual.Lab Acoustics进行声辐射分析,得到开孔板结构的辐射声功率以及指向性声功率。并在此基础上研究开孔形状、开孔尺寸以及加强筋对板结构声辐射的影响,发现板结构固有频率是影响声辐射的重要因素。The acoustic numerical simulation of perforated plate is performed.Firstly,the modeling,mesh generation and modal analysis of the perforated plate are carried out by means of the finite element software Patran.Then the numerical model and modal analysis results are imported into the acoustic simulation software Virtual.Lab Acoustics to obtain the acoustic radiation power and directional acoustic power of the perforated plate structure.Finally,the influences of opening shape,opening size and stiffener on the sound radiation of the perforated plates are analyzed.It is found that the natural frequency of the plates is an important factor affecting the sound radiation.

关 键 词：声学 间接边界元法 开孔板 声辐射 声学仿真 指向性声功率 

分 类 号：TB532[理学—物理]