噪声与振动控制2025，Vol.45Issue(3)：216-221,6.DOI:10.3969/j.issn.1006-1355.2025.03.034
高速列车车厢材料隔声量的实验研究
Experimental Study on Sound Insulation of High-speed Train Compartment Materials
刘勇君 1赵文宝2
作者信息
- 1. 吉林化工学院 机电工程学院,吉林 吉林 132022
- 2. 延边大学 工学院,吉林 延吉 133002
- 折叠
摘要
Abstract
With the continuous increasing of the speed of high-speed trains,the noise in compartment is more difficult to control,but the noise is one of the main factors affecting the comfort.Higher noise level in the compartment will also cause the vibration of train parts,so as to accelerate the fatigue damage of train parts and reduce their service life.Therefore,it is necessary to study the sound insulation performance of train compartment,and the sound transmission loss(STL)is an important index to measure the sound insulation performance of materials.This paper mainly researches the single-layer and multi-layer composite materials at the bottom and side of a high-speed train compartment.The actual test value of the STL was obtained through the experimental test,and the theoretical value and tested value of the STL were analyzed.In order to improve the sound insulation performance of the compartment side,two kinds of schemes were proposed,namely,doubling the area density of the Nomax honeycomb panel of the multi-layer composite material on the side of compartment or dou-bling the thickness of air layer of the window.The results show that the former scheme can significantly increases the sound insulation at the sides of the compartment.关键词
声学/隔声量/隔声/高速列车/诺美克斯蜂窝板/挤压铝板Key words
acoustics/sound transmission loss/sound insulation/high-speed train/Nomex honeycomb/extruded alu-minum plate分类
交通工程引用本文复制引用
刘勇君,赵文宝..高速列车车厢材料隔声量的实验研究[J].噪声与振动控制,2025,45(3):216-221,6.
