Noise insulation properties of carriage wallboard of high-speed trains

被引：0

作者：

Dang Z. ^{[1
]}

Mao Z. ^{[1
]}

机构：

[1] School of Marine Science and Technology, Northwestern Polytechnical University, Xi'an

来源：

International Journal of Vehicle Noise and Vibration | 2019年 / 15卷 / 04期

关键词：

Acoustic transmission; Coupling; Finite element method; High-speed; Interaction; Loss; Noise; Sound insulation; Stiffness; Trains;

D O I：

10.1504/IJVNV.2019.107915

中图分类号：

学科分类号：

摘要：

With the increase of running speeds, noise transmission through carriage wallboard into cabin has become a noticeable issue to be solved in the further development. This paper presents analysis on sound insulation properties of carriage wallboard of high-speed trains. Finite element method (FEM) combined with acoustic-solid interaction (ASI) is applied to investigate the sound transmission loss (STL) performance. The predicted STLs are checked against experimental results, achieving good agreement in the trend. Then, the effects of several key parameters on sound insulation capability of the double-wall panel with different configurations of truss-core are systematically studied, including the inclination angle, the thickness, the configurations and its equivalent stiffness of the truss-core. To give intensive understanding of the STL behaviour, the equivalent stiffness of sound bridge is studied, which could provide some guidance for engineers from the perspective of sound insulation performance. Copyright © 2019 Inderscience Enterprises Ltd.

引用

页码：220 / 237

页数：17

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