噪声与振动控制2017，Vol.37Issue(4)：34-39,68,7.DOI:10.3969/j.issn.1006-1355.2017.04.008
基于Virtual.Lab Acoustics的蜂窝夹层板结构传声特性分析
Analysis of Acoustic Performance of Honeycomb Sandwich Panels Based on Virtual. Lab Acoustics
范鑫 1崔洪宇 1洪明1
作者信息
- 1. 大连理工大学 船舶结构强度振动噪声研究所,辽宁 大连 116024
- 折叠
摘要
Abstract
The acoustic performance of a honeycomb sandwich panel is studied by numerical simulation. Based on the acoustic indirect boundary element theory, a 3D model is established and then modal analysis is conducted with the help of finite element software Patran. To obtain the sound pressure distribution, sound pressure level difference and transmission loss of the panel, the acoustic software Virtual. Lab Acoustics is used in the process of the acoustic performance calculation. On this basis, the influences of the face thickness and density, the thickness of the core, the thickness and the length of the honeycomb wall on the sound transmission loss are analyzed systematically. The results indicate that the face thickness and the core thickness play a significant role in the acoustic performance of the honeycomb sandwich panel in low frequency range, especially in the stiffness control area.关键词
振动与波/蜂窝夹层板/声学间接边界元/传声损失/仿真Key words
vibration and wave/honeycomb sandwich panel/acoustic indirect boundary element/sound transmission loss/simulation分类
建筑与水利引用本文复制引用
范鑫,崔洪宇,洪明..基于Virtual.Lab Acoustics的蜂窝夹层板结构传声特性分析[J].噪声与振动控制,2017,37(4):34-39,68,7.
