| 黏弹性阻尼材料用于列车车内减振降噪的试验研究 |
| |
| 引用本文： | 范蓉平,孟光,贺才春,杨军.黏弹性阻尼材料用于列车车内减振降噪的试验研究[J].机械强度,2010,32(2). |
| |
| 作者姓名： | 范蓉平 孟光 贺才春 杨军 |
| |
| 作者单位： | 1. 上海交通大学机械系统和振动国家重点实验室,上海,200240
2. 株洲时代新材料科技股份有限公司,株洲,412007 |
| |
| 基金项目： | 国家高科技研究发展计划(863计划)基金(2003AA333140);;高等学校学科创新引智计划资助基金(B06012)资助项目~~ |
| |
| 摘 要： | 随着车辆轻量化和乘坐舒适性要求的提高,车内噪声振动控制成为关注的问题。采用研制开发的三种阻尼材料,改性沥青、水性涂料和丁基橡胶阻尼材料,分别对车厢进行约束层和自由层阻尼处理。车厢振动噪声现场试验结果表明,改性沥青和水性涂料比丁基橡胶减振降噪效果好。阻尼材料在整个频率上降低车厢上下地板的振动;安装有阻尼材料的车厢乘坐舒适性得到提高。随着车速的增加,改性沥青和水性涂料的减振降噪效果更明显。车内声学舒适性评价表明,响度比A声级更准确说明丁基橡胶对车内噪声的影响。
|
| 关 键 词： | 黏弹性阻尼材料 车厢 振动 噪声 响度 |
EXPERIMENTAL STUDY OF VISCOELASTIC DAMPING MATERIALS FOR VIBRATION ANG NOISE CONTROL WITHIN RAILWAY VEHICLES |
| |
| FAN RongPing,MENG Cuang,HE CaiChun,YANG Jun.EXPERIMENTAL STUDY OF VISCOELASTIC DAMPING MATERIALS FOR VIBRATION ANG NOISE CONTROL WITHIN RAILWAY VEHICLES[J].Journal of Mechanical Strength,2010,32(2). |
| |
| Authors: | FAN RongPing MENG Cuang HE CaiChun YANG Jun |
| |
| Affiliation: | 1.State Key Laboratory of Mechanical System and Vibration/a>;Shanghai Jiaotong University/a>;Shanghai 200240/a>;China;2.Zhuzhou Times New Materials Technology Co./a>;Ltd./a>;Zhuzhou 412001/a>;China |
| |
| Abstract: | With the light-weighting trend in railway vehicles and improving requirement for the riding comfort,the control of vibration and noise becomes a more and more important issue.Three types of viscoelastic damping materials,such as bitumen based damping material,water-based damping coating and butyl rubber damping material,are developed and introduced into the studies.Sleeper carriages have been furnished with the new materials in different patterns of free-layer and constrained-layer damping treatment.By comp... |
| |
| Keywords: | Viscoelastic damping material Carriage Vibration Noise Loudness |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
