| 高速列车隧道初始压缩波的动模型实验研究1) |
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| 引用本文： | 郭易, 单东日, 郭迪龙, 杨国伟, 杜健. 高速列车隧道初始压缩波的动模型实验研究1)[J]. 力学与实践, 2018, 40(5): 495-502. doi: 10.6052/1000-0879-18-120 |
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| 作者姓名： | 郭易 单东日 郭迪龙 杨国伟 杜健 |
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| 作者单位： | *(齐鲁工业大学(山东省科学院)机械与汽车工程学院,济南250353); †(中国科学院力学研究所,流固耦合系统力学重点实验室,北京 100190); **(中车青岛四方机车车辆股份有限公司,山东青岛 266111) |
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| 基金项目： | 1) 国家重点研发计划资助项目(2016YFB1200506-22) |
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| 摘 要： | 利用动模型实验方法,主要研究列车头型横截面变化对初始压缩波的影响。结果表明,在列车最大横截面积和流线型部分长度相同的情况下,列车头部流线型部分的平均横截面积和截面变化率均会对初始压缩波的压力峰值产生影响,平均横截面积决定了初始压缩波形成时的强度大小,截面变化率则通过影响初始压缩波的压力梯度,决定在隧道传播过程中初始压缩波压力峰值的衰减程度。
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| 关 键 词： | 高速列车 动模型实验 隧道 初始压缩波 截面变化 |
| 收稿时间： | 2018-03-28 |
MOVING MODEL ANALYSIS OF THE INITIAL COMPRESSION WAVE IN TUNNEL FOR HIGH-SPEED TRAINS1) |
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| GUO Yi, SHAN Dongri, GUO Dilong, YANG Guowei, DU Jian. MOVING MODEL ANALYSIS OF THE INITIAL COMPRESSION WAVE IN TUNNEL FOR HIGH-SPEED TRAINS1)[J]. Mechanics in Engineering, 2018, 40(5): 495-502. doi: 10.6052/1000-0879-18-120 |
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| Authors: | GUO Yi SHAN Dongri GUO Dilong YANG Guowei DU Jian |
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| Affiliation: | *(School of Mechanical & Automotive Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China); †(Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China); **(CRRC Qingdao Sifang Co. Ltd., Qingdao 266111, Shandong, China) |
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| Abstract: | The influence of the cross section on the initial compression wave is studied by using the moving model experiment in this paper. The results show that the initial compression wave variation is the combined result of the average cross-sectional area and the cross-sectional area distribution of a high-speed train streamlined nose when the train's max cross section and the streamlined nose length are the same. The average cross-sectional area affects the magnitude of the initial compression wave, and the cross-sectional area distribution affects the pressure gradient of the initial compression wave, therefore, affects the pressure dissipation of the initial compression wave propagating in the tunnel. |
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| Keywords: | high-speed train|moving model experiment|tunnel|initial compression wave|distribution of cross-sectional area |
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