| 高速铁路桥梁的低频噪声研究 |
| |
| 引用本文： | 丁桂保,郑史雄.高速铁路桥梁的低频噪声研究[J].西南交通大学学报,1998,33(2):127-131. |
| |
| 作者姓名： | 丁桂保 郑史雄 |
| |
| 作者单位： | 西南交通大学应用力学与工程系 |
| |
| 摘 要： | 根据结构的声辐射条件，导出具有耦合关系的有限元列式，然后分析计算了高速列车通过桥梁时各构件的振动响应，由此求得振动所诱发的低频噪声，进而示得声压随时间的变化规律以及声压频谱图，并分析产生噪声的主要原因，提出了预防与控制噪声的措施。
|
| 关 键 词： | 铁路桥 高速铁路 桥梁 噪声 有限元 |
Study on Low Frequency Noise of High Speed Railway Bridges |
| |
| Ding,Guibao,Zheng,Shixiong.Study on Low Frequency Noise of High Speed Railway Bridges[J].Journal of Southwest Jiaotong University,1998,33(2):127-131. |
| |
| Authors: | Ding Guibao Zheng Shixiong |
| |
| Abstract: | With acoustic radiation conditions of railway bridges being taken into consideration, the coupled equations of structural interactions are derived. The dynamic responses of components of a bridge are analyzed with a high speed train passing over the bridge. The low class frequency noises generated by vibrations are calculated. The relationship between noise pressure and time and the noise spectrum are obtained. The main factors affecting the generation of noises are studied. Measures for noise control and prevention are proposed. |
| |
| Keywords: | high speed railways bridge noise finite element method |
| 本文献已被 CNKI 维普 等数据库收录！ |
