城市轨道交通车站站台门抗冲击性能的研究
吴爱中1闭永雷1曾骁晹2金启华3
Study on Impact Resistance Performance of Urban Rail Transit Platform Screen Door
WU AizhongBI YongleiZENG XiaoyiJIN Qihua
-
作者信息:1.上海工程技术大学城市轨道交通学院, 201620, 上海；
2.上海地铁第一运营有限公司, 200003, 上海；
3.上海市特种设备监督检验技术研究院, 200062, 上海
-
Affiliation:School of Urban Rail Transportation, Shanghai University of Engineering Science, 201620, Shanghai, China
-
关键词:
-
Key words:
-
DOI:10.16037/j.1007-869x.2022.06.014
-
中图分类号/CLCN:U231.4； U291.6+3; TG115.5+6
-
栏目/Col:研究报告
摘要:
城市轨道交通车站站台门玻璃面板的破裂会危及乘客安全和车辆安全，影响运行秩序。采用现场试验与有限元模拟相结合的方法，对站台门样机的抗冲击性能进行研究。简述了摆锤冲击方法及其试验装置，讨论了不同加载条件引起的玻璃面板门体变形情况，建立了扩展有限元模型分析玻璃面板的起裂行为。检测发现，摆锤冲击速度为0~37 m/s时，玻璃面板未出现破损情况。这与有限元分析结果相符。比较了不同有限元模型的特点，发现基于三维实体单元的扩展有限元模型能够预测玻璃面板起裂；在不预制初始裂纹的情况下，扩展有限元模型不能模拟玻璃脆裂时的放射形裂纹和周向裂纹扩展，也不能模拟整片玻璃完全碎裂成颗粒的全过程。
Abstracts:
Since urban rail transit station platform screen door (PSD) fracture can endanger passenger and vehicle safety, disturbing operation orders. By combining field test and finite element simulation, impact resistance performance of PSD model machine is studied. The pendulum impact test method and test device are briefly introduced. The deformation of glass door caused by different loading conditions is discussed. An extended finite element model is established to analyze the crack initiation behavior of tempered glass. It is found that when the impact velocity of the pendulum is within 0~3.7 m/s, the glass panel is not damaged, and the measured glass deformation results are consistent with the finite element results. The characteristics of different finite element models are compared elaborately. It is found that the extended finite element model based on 3D solid unit can predict the initiation of glass fracture. When initial fractures are not pre-made, the extended finite element model is unable to simulate the radial crack and circumferential crack propagation, nor the whole process of whole glass breaking into complete scatters.
引文 / Ref:
吴爱中, 闭永雷, 曾骁晹, 等. 城市轨道交通车站站台门抗冲击性能的研究. 城市轨道交通研究, 2022, 25(6): 70.
WU Aizhong, BI Yonglei, ZENG Xiaoyi, et al. Study on impact resistance performance of urban rail transit platform screen door. Urban Mass Transit, 2022, 25(6): 70.
WU Aizhong, BI Yonglei, ZENG Xiaoyi, et al. Study on impact resistance performance of urban rail transit platform screen door. Urban Mass Transit, 2022, 25(6): 70.
- 上一篇: 高铁物流运输模式及其可行性
- 下一篇: 我国Ⅰ型大城市的城市轨道交通线网规划思考
过刊浏览
资料下载
友情链接