[1]臧传臻.400km／h高速铁路小半径曲线地段橡胶浮置板轨道参数优化研究[J].高速铁路技术,2024,(01):29-34，52.[doi:10.12098/j.issn.1674-8247.2024.01.006]
　ZANG Chuanzhen.Study on Optimization of Track Parameters for Rubber Floating Slab in Small Radius Curved Section of 400 km／h High-speed Railway[J].HIGH SPEED RAILWAY TECHNOLOGY,2024,(01):29-34，52.[doi:10.12098/j.issn.1674-8247.2024.01.006]
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400km／h高速铁路小半径曲线地段橡胶浮置板轨道参数优化研究()
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《高速铁路技术》[ISSN:1674-8247/CN:51-1730/U]

卷:
期数:
2024年01期
页码:
29-34，52
栏目:
理论探索
出版日期:
2024-03-20

文章信息/Info

Title:
Study on Optimization of Track Parameters for Rubber Floating Slab in Small Radius Curved Section of 400 km／h High-speed Railway
文章编号:
1674-8247（2024）01-0029-06
作者:
臧传臻
中国铁路设计集团有限公司，天津 300308
Author(s):
ZANG Chuanzhen
China Railway Design Corporation ，Tianjin 300308 ，China
关键词:
高速铁路; 橡胶浮置板轨道; 小半径曲线; 插入损失
Keywords:
high-speed railway; rubber floating slab track; small radius curve; insertion loss
分类号:
U213.2+12
DOI:
10.12098/j.issn.1674-8247.2024.01.006
文献标志码:
A
摘要:
为了研究400km／h高速铁路列车经过小半径曲线地段时的动力响应特性，建立小半径曲线地段CRH380B车辆-轨道动力学模型，结合列车实测数据验证模型的准确性，随后模拟列车以400km／h速度通过7000m半径曲线路段的动力响应。结果表明：（1）相较于非减振轨道地段，当橡胶浮置板轨道的减振垫铺设刚度为0.019N／mm3、0.033N／mm3、0.042N／mm3、0.1N／mm3时，轨道减振效果分别为13.4dB、13.4dB、12.5dB、8.6dB；（2）道床板厚度、减振垫刚度的建议取值分别为300mm、0.03N／mm3。研究成果可为400km／h高速铁路橡胶浮置板轨道结构设计提供理论依据。
Abstract:
In order to study the dynamic response characteristics of 400 km／h high-speed train when passing through a small radius curve，a vehicle-track dynamics model of the CRH380B train on section with small radius curve was established. The model’s accuracy was verified with actual measured data from the train. Subsequently，simulations were conducted to predict the dynamic response of the train while traversing a curve with a 7 000 m radius at the speed of 400 km／h. The results showed that：（1）Compared to a track section without damping，the vibration reduction effect of the rubber floating slab track with damping pads at stiffness levels of 0. 019 N／mm3，0. 033 N／mm3，0. 042 N／mm3， and 0. 1 N／mm3 were 13. 4 dB，13. 4 dB，12. 5 dB，and 8. 6 dB，respectively. （2）The recommended values for the slab thickness and damping pad stiffness are 300 mm and 0. 03 N／mm3，respectively. The conclusions provide a theoretical basis for the design of rubber floating slab track structures for 400 km／h high-speed railways.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：2023-11-06
作者简介：臧传臻（1990-），男，高级工程师。
基金项目：国家重点研发计划项目（2022YFB2603400），中国铁路设计集团有限公司科技开发课题（2021A240101；2022BXZ005）
更新日期/Last Update: 2024-03-20