Influence mechanisms of different bridge spans on vertical coupled vibration of low and medium speed maglev train-simply supported beam system

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Journal of Vibration and Shock ›› 2022, Vol. 41 ›› Issue (19) : 8-15.

LI Xiaozhen1, WANG Yuwen1, HU Qikai1, WANG Dangxiong2

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Abstract

In order to research the influences of different spans on the vertical dynamic interaction of low-to-medium speed(LMS) maglev train-simply supported beam system. The vertical coupling vibration analysis model for LMS maglev train-simply supported beam system was established. Taking the three typical concrete simply supported beams with different spans of 25m, 30m and 35m as the research object, the vertical vibration characteristics of low-to-medium speed maglev train-simply supported beam system were analyzed. It was shown that the numerical model of coupling vibration is reliable; with the increase of simply supported beam span, the vertical deflection of the bridge decreases, while the vertical acceleration decreases; the vertical dynamic displacement and acceleration of the vehicle body and suspension frame increase with the increase of simply supported beam span, the dominant frequency bands of the vertical acceleration of the suspension frame are concentrated in 0-30Hz and 50-80Hz, the whole car body exhibits low frequency vibration (0-15Hz); the fluctuation range of the suspension gap and levitation force increases with the increase of simply supported beam span; the different spans can change the spectrum distribution characteristics of vertical acceleration of bridge; according to the need, the maglev line can flexibly choose the span of the simply supported beam on the premise of meeting the static safety service, so as to save the project cost to the maximum extent.
Keywords: Low-to-medium-speed maglev train; simply supported beam; different bridge span; coupling vibration; model verification

Key words

Low-to-medium-speed maglev train / simply supported beam / different bridge span / coupling vibration / model verification

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LI Xiaozhen1, WANG Yuwen1, HU Qikai1, WANG Dangxiong2. Influence mechanisms of different bridge spans on vertical coupled vibration of low and medium speed maglev train-simply supported beam system[J]. Journal of Vibration and Shock, 2022, 41(19): 8-15

References

[1] Lee H W, Kim K C, Lee J. Review of maglev train technologies. IEEE Transactions on Magnetics 2006, 42(7):1917-1925.
[2] 赵春发. 磁悬浮车辆系统动力学研究[D]. 成都：西南交通大学, 2002.
[3] 邹振民. 新世纪城市理想的交通工具—介绍日本HSST磁悬浮列车系统[J]. 铁道通信信号, 2001, 37(11): 37-39.
ZOU Zhenmin. The ideal vehicle for the new century city-introduction of the Japanese HSST maglev train system[J]. Railway Signalling & Communication, 2001, 37(11): 37-39.
[4] Yim B H. Han H S. Lee J k. et al. Curving performance simulation of an EMS-type maglev vehicle[J]. Vehicle System Dynamics. 2009, 47(10): 1287-1304.
[5] 邓小星. 中低速磁浮车辆系统动力学性能研究[D]. 西南交通大学, 2009.
[6] 梁鑫, 罗世辉, 马卫华. 常导磁浮列车动态磁轨关系研究[J].铁道学报, 2013, 35(09): 39-45.
LING Xin, LUO Shihui, MA Weihua. Study on dynamic magnet-track relationship of maglev vehicles[J]. Journal of the China Railway Society, 2013, 35(09): 39-45.
[7] Zheng X J, Wu J J. and Zhou Y H. Numerical analyses on dynamic control of five-degree-of-freedom maglev vehicle moving on flexible guideways. Journal of Sound and Vibration, 235(2000): 43-61.
[8] Zhao C F, Zhai W M. Maglev vehicle/guideway vertical random response and ride quality[J]. Vehicle System Dynamics, 2002: 38(3): 185-210.
[9] 单春胜. 中低速磁浮列车-桥梁系统竖向耦合振动研究[D]. 成都: 西南交通大学, 2014.
[10] 腾延锋. 高速磁浮轨道梁在车辆荷载作用下的振动研究[D]. 上海: 上海交通大学, 2008.
[11] Shi J, Wei Q C. and Zhao Y. Analysis of dynamic response of the high-speed EMS maglev vehicle/guideway coupling system with random irregularity. Vehicle System Dynamics, 2007, 45(12): 1077-1095.
[12] 赵春发，翟婉明，蔡成标. 磁浮列车/高架桥垂直耦合动力学研究[J]. 铁道学报, 2001, 23(5): 27-33.
ZHAO Chufa, ZHAI Wanming, CAI Chengbiao. Maglev vehicle/elevated-beam guideway vertical coupling dynamics[J]. Journal of the China Railway Society, 2001, 23(5): 27-33.
[13] 时瑾, 魏庆朝, 吴范玉. 高速磁浮铁路轨道梁振动分析及控制研究[J]. 中国安全科学学报, 2003, 13(10): 76-80.
SHI Jin, WEI Qingchao, WU Fanyu. Study on vibration of the beam of magnetic levitation express railway and its control[J]. China Safety Science Journal, 2003, 13(10): 76-80.
[14] 李小珍, 金鑫, 王党雄. 长沙中低速磁浮运营线列车-桥梁系统耦合振动试验研究[J]. 振动与冲击, 2019, 38(13): 57-63.
LIN Xiaozhen, JIN Xin, WANG Dangxiong. Experimental study on coupled vibration of train-bridge system on Changsha medium and low speed maglev line[J]. Journal of vibration and shocks, 2019, 38(13): 57-63.
[15] Yau J D. Aerodynamic vibrations of a maglev vehicle running on flexible guideways under oncoming wind action[J]. Journal of Sound and Vibration. 2010, 329(10): 1743-1759.
[16] Kwon S D. Lee J S. Moon J W. et al. Dynamic interaction analysis of urban transit maglev vehicle and guideway suspension bridge subjected to gusty wind[J]. Engineering Structures. 2008, 30(12): 3445-3456.
[17] 马乐为, 徐赵东. 结构动力学[M]. 北京: 科学出版社, 2007.
[18] J.D. Yau. Vibration control of maglev vehicles traveling over a flexible guideway. Journal of Sound and Vibration, 321(2009): 184-200.
[19] Li Z G, Wu T X. Modelling and analysis of force transmission in floating-slab track for railways[J]. Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit. 2008, 222(1): 45-57.
[20] Han JB,Han HS, Kim SS, et al. Design and validation of a slender guideway for Maglev vehicle by simulation and experiment[J]. Vehicle System Dynamics,2016,54(3): 370-385.
[21] Han H S, Yim B H, Lee N J, et al. Effects of the guideway’s vibrational characteristics on the dynamics of a maglev vehicle[J]. Vehicle System Dynamics. 2009, 47(3): 309-324.
[22] 梁鑫. 磁浮列车车轨耦合振动分析及试验研究[D].西南交通大学,2015.