DYNAMIC AND STATIC AIR TIGHTNESS ANALYSIS METHOD AND THEIR APPLICATION IN EMU
-
摘要: 随着运行速度的提升, 高速动车组受到的外部激扰愈发剧烈. 尤其是动车组通过隧道和在隧道内交会时, 车体外表面产生的剧烈瞬变压力传入车厢内, 会引起司乘人员耳感不适等问题. 为研究动车组运行过程中的气密性能对车内气压波动和乘客乘坐舒适度的影响关系, 本文采用动静态测试结合的分析方法, 结合时间常数模型和当量泄漏面积模型, 通过在不同车辆内外部布置气压波动监测传感器, 对四级修前后的高速动车组进行了线路运行气动载荷测试; 针对不同部位具体结构特征开发了不同型式的气体泄漏量测试工装, 并对不同车辆的静态气密性进行了测试研究. 搭建了动静态气密性能分析模型并获得了动静态气密指数, 总结了隧道条件、运行速度等因素对车内压力波动和动态气密性能的影响规律, 同时针对典型气密部件的泄漏量和泄漏面积进行了分析, 对气密敏感部件进行了影响度排序并提出了优化方案. 本文提出的方法和相关研究数据对于关键部件的设计方案和修程修制优化具有一定的参考意义.Abstract: With the increase of running speed, the external disturbance of high speed EMU becomes more and more severe. In particular, when the EMUs pass through the tunnel and meet in the tunnel, the violent transient pressure generated by the external surface of the EMU is transmitted into the compartment, which will cause ear discomfort to drivers and passengers. Aiming at studying the influence of the airtight performance of EMU during operation on the pressure fluctuation and the passengers ride comfort, this article adopted the analysis method with combination of the dynamic and static test, combining with the time constant model and the equivalent leakage area model, through the internal and external arrangement of air pressure fluctuation monitoring sensors in different vehicles, carried out the aerodynamic load test before and after the operation of the EMU maintenance (Level IV) . According to the specific structural characteristics of different parts, different types of gas leakage testing equipment were developed to test and study static air tightness of different vehicles. The dynamic and static hermetic performance analysis model was established and the related air indexes were obtained, then the influence law of the condition of tunnel, speed and other factors on the interior pressure fluctuation and dynamic airtight performance was summarized. At the same time the leakage and the leakage area of the typical air tight parts were analyzed, and the effect of air sensitive parts sorting and optimized scheme were put forward. The method and relevant research data proposed in this paper have certain reference significance for the design scheme and repair program optimization of key components.
-
Keywords:
- EMU /
- air tightness /
- running velocity /
- dynamic test /
- static test
-
-
[1] Suzuki H . A review of research trends on passengers' aural discomfort caused by rail tunnel pressure change. RTRI Report, 1996,10(10):41-42 (in Japanese) [2] 沙森 . 中耳气压伤——山区火车司机的职业危害. 铁路节能环保与安全卫生, 2002,29(6):256-257. (Sha Sen . Middle ear air pressure injury - Occupational hazard for mountain train drivers. Railway Occupational Safety Health & Environmental Protection, 2002,29(6):256-257 (in Chinese))
[3] Palmero NM, Vardy A . Tunnel gradients and aural health criterion for train passengers. Rail and Rapid Transit, 2013,227(7):609-622 [4] Zenda Y . Study on the ventilating system of Shinkansen vehicle by simulating the internal pressure. RTRI Report, 1988,2(12):41-48 (in Japanese) [5] 大西徳明, 小木和孝, 酒井一博, 等. 山陽新幹線運転室の気圧変化について. 労働科学, 1982,58(10):509-516 [6] Adolph U, Coldewey LM . Air cycle system and pressure protection system for high speed trains. ZEV$+$ DET Glass Ann, 1997,121(2):192-200 (in German) [7] 杨国伟, 魏宇杰, 赵桂林 等. 高速列车关键力学问题研究. 力学进展, 2015,45:217-460. (Yang Guowei, Wei Yujie, Zhao Guilin , et al. Research progress on the mechanics of high speed rails. Advances in Mechanics, 2015,45:217-460 (in Chinese))
[8] 魏玉卿 . 不同气密条件下高速列车内外压差分析. 科学技术创新, 2019,12:37-38. (Wei Yuqing . Analysis of pressure difference between inside and outside of high speed train under different air tight conditions. Scientific and Technological Innovation Information, 2019,12:37-38 (in Chinese))
[9] 李玉洁, 梅元贵 . 动车组车辆气密性指标的初步探讨. 铁道机车车辆, 2009,29(2):31-35. (Li Yujie, Mei Yuangui . Primary discussion about pressure tightness of electric multiple units. Railway Locomotive & Car, 2009,29(2):31-35 (in Chinese))
[10] 陈春俊, 聂锡成, 唐猛 . 车外空气压力作用下的CRH2型动车组车内空气压力传递函数模型. 中国铁道科学, 2013,34(4):85-88. (Chen Chunjun, Nie Xicheng, Tang Meng . Transfer function model of the air pressure inside crh2 emu under outside air pressure. China Railway Science, 2013,34(4):85-88 (in Chinese))
[11] 赵宇艳, 蒋莉 . 动车组风挡气密性测试系统的设计. 常州信息职业技术学院学报, 2014,13(2):15-19. (Zhao Yuyan, Jiang Li . Design of air tightness performance test system of motor train unit windshield. Journal of Changzhou Vocational College of Information Technology, 2014,13(2):15-19 (in Chinese))
[12] 张芯茹, 于以正, 梅元贵 . 更高速度下京沪高铁列车整车时间常数动态气密性阈值初探. 铁道机车车辆, 2019,39(3):113-118. (Zhang Xinru, Yu Yizheng, Mei Yuangui . Preliminary study on dynamic air tightness threshold of time constant of Beijing-Shanghai high-speed railway train at higher speed. Railway Locomotive & Car, 2019,39(3):113-118 (in Chinese))
[13] 洪育仙, 杨金超, 刘丁发 . 高铁列车风挡压力测试系统设计及试验研究. 中国铁路, 2015,3:57-60. (Hong Yuxian, Yang Jinchao, Liu Dingfa . Pressure test system design and experimental study of windshield of high-speed EMU. Chinese Railways, 2015,3:57-60 (in Chinese))
[14] 刘冬雪, 蒋雅男, 杨明智 . 加减速时地铁列车隧道气动性能研究. 铁道科学与工程学报, 2018,15(1):178-187. (Liu Dongxue, Jiang Yanan, Yang Mingzh . Study on tunnel aerodynamic of subway train during acceleration. Journal of Railway Science and Engineering, 2018,15(1):178-187 (in Chinese))
[15] 许利深 . 深圳地铁11号线地铁列车客室压力变化率超标分析及改进. 现代城市轨道交通, 2019,5:32-34. (Xu Lishen . Analysis and improvement of pressure change rate of passenger coach on Shenzhen metro line 11. Modern Urban Transit, 2019,5:32-34 (in Chinese))
[16] Xie PP, Peng Y, Hu JJ , et al. Assessment methodology for pressure-related aural discomfort in high-speed trains using airtightness experiments and mathematical models. Rail And Rapid Transit, 2019,4:1-11 [17] Liu TH, Chen MY, Chen XD , et al. Field test measurement of the dynamic tightness performance of high-speed trains and study on its influencing factor. Measurement, 2019,138:602-613 [18] Liu TH, Geng SG, Chen XD , et al. Numerical analysis on the dynamic airtightness of a railway vehicle passing through tunnels. Tunnelling and Underground Space Technology, 2020,97(103286):1-12 [19] Xie PP, Peng Y, Wang TT , et al. Risks of ear complaints of passengers and drivers while trains are passing through tunnels at high speed: a numerical simulation and experimental study. Environmental Research and Public Health, 2019,16(1283):1-20 [20] Zhang TT, Wang F . The air tightness test method of the high speed train. Applied Mechanics and Materials, 2012,229:482-486 [21] 李文夏, 徐世东 . 高速动车组和客车气密性技术与标准. 铁道技术监督, 2013,41(5):10-12. (Li Wenxia, Xu Shidong . Technology and standard for air tightness of high-speed EMU and passenger cars. Railway Quality Control, 2013,41(5):10-12 (in Chinese))
[22] 王建宇, 吴剑, 万晓燕 . 车辆的密封性及瞬变压力向列车内传递规律. 现代隧道技术, 2009,46(3):12-16. (Wang Jianyu, Wu Jian, Wan Xiaoyan . Airtightness of carriages and the law of transient pressure transfering into the train. Modern Tunnelling Technology, 2009,46(3):12-16 (in Chinese))
[23] 亢文祥, 陈春棉, 熊小慧 . CRH2动车组新风换气装置对车内压力波动影响试验研究. 铁道科学与工程学报, 2011,8(5):84-89. (Kang Wenxiang, Chen Chunmian, Xiong Xiaohui . CRH2 Experimental research on the pressure variation effect inside the car caused by CRH2 EMU new-wind ventilator. Journal of Railway Science and Engineering, 2011,8(5):84-89 (in Chinese))
[24] 李国清, 李明, 郭伟 等. 高速综合检测列车头车气密性评估. 机车电传动, 2012(3):45-48. (Li Guoqing, Li Ming, Guo Wei , et al. Leading car air tightness assessment of high-speed inspection train. Electric Drive for Locomotives, 2012(3):45-48 (in Chinese))
[25] 何德华, 陈厚嫦, 张超 . 高速列车通过隧道压力波特性试验研究. 铁道机车车辆, 2014,34(5):17-20. (He Dehua, Chen Houchang, Zhang Chao . Test study on tunnel pressure wave for EMU. Railway Locomotive & Car, 2014,34(5):17-20 (in Chinese))
[26] 李田, 戴志远, 张继业 等. 列车气密性静态泄漏理论模型与计算. 交通运输工程学报, 2020,20(1):150-158. (Li Tian, Dai Zhiyuan, Zhang Jiye , et al. Theoretical model and calculation of static leakage for train air tightness. Journal of Traffic and Transportation Engineering, 2020,20(1):150-158 (in Chinese))
[27] 梅元贵, 马瑶, 王雷 . 山区高速列车车体动态气密性阈值特征的数值模拟研究. 机械工程学报, 2020,56(12):196-206. (Mei Yuangui, Ma Yao, Wang Lei . Numerical simulation study on dynamic air-tightness thresholds characteristics of high-speed train body in mountain area high speed railway. Journal of Mechanical Engineering, 2020,56(12):196-206 (in Chinese))
[28] 王宏谋, 陈厚嫦, 朱俊廷 等. 线间距和阻塞比对动车组空气动力学性能影响的分析. 铁道机车车辆, 2017,37(5):31-33, 43 (in Chinese)) ( Wang Hongmou, Chen Houchang, Zhu Tingjun, et al. Analysis of EMU aerodynamic performance influenced by line spacing and tunnel section. Railway Locomotive & Car, 2017,37(5):31-33, 43 (in Chinese))
[29] 阎雪源, 石海明 . 高速客车塞拉门及其气密性措施. 铁道车辆, 2003,41(12):12-13. (Yan Xueyuan, Shi Haiming . Plug doors for high speed passenger cars and the air-tightness measures. Rolling Stock, 2003,41(12):12-13 (in Chinese))
[30] 张芳涛, 李文彪, 李兵 . 动车组气密性技术探讨. 铁道机车车辆, 2015,35(6):44-46, 72 (in Chinese) (Zhang Fangtao, Li Wenbiao, Li Bing. Technical discussion of the EMU air-tightness. Railway Locomotive & Car, 2015,35(6):44-46, 72 (in Chinese))
-
期刊类型引用(8)
1. 赵亮，杜迎春，梅元贵. 基于成渝中线隧道参数CR450高速动车组气密性阈值分布特征研究. 兰州交通大学学报. 2024(02): 95-103 . 
百度学术
2. 梅元贵，范崇勋. 被动式压力控制技术的高速列车车内压力计算方法研究. 铁道学报. 2024(09): 28-37 . 百度学术
3. 吴敏慧，刘建超，张戈，王鲁平，段海滨. 城市快速轨道交通压力波及列车气密性措施分析. 都市快轨交通. 2024(05): 116-123 . 百度学术
4. 谢绍兴，杜彦品，辛志斌. 时速160 km动车组车体气密性检测研究. 铁道车辆. 2024(S1): 42-46 . 百度学术
5. 梅元贵，王志钧，吕博，杜云超，杨永刚. 高速列车隧道车内外压力变化的实车试验. 交通运输工程学报. 2023(02): 183-198 . 百度学术
6. 刘菊美，彭有根，林东升，张坤. 全隧道市域列车的气密性分析. 电力机车与城轨车辆. 2023(06): 107-111+114 . 百度学术
7. 张志超，何海，段玉业，晁邦轩. 高速列车气密性问题研究进展及建议. 湖南工业职业技术学院学报. 2023(05): 1-8+13 . 百度学术
8. 尹小春，卢耀辉，赵宏星，史潇博，唐波. 隧道工况下高速列车动态气密性数值分析方法. 郑州大学学报(工学版). 2022(05): 52-58 . 百度学术
其他类型引用(7)
计量
- 文章访问数: 1085
- HTML全文浏览量: 238
- PDF下载量: 188
- 被引次数: 15
下载:
