Dynamic responses of air-spring suspension of a maglev vehicle negotiating a small-radius vertical curved track

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Journal of Vibration and Shock ›› 2020, Vol. 39 ›› Issue (17) : 99-105.

LUO Yingkun1, ZHAO Chunfa1, LIANG Xin2, FENG Yang1

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Abstract

Combining with R&D of a new levitation frame of EMS high-speed maglev, a maglev vehicle dynamic model including non-linear air-spring models and active electromagnetic controllers was established. With this model, dynamic responses of a maglev vehicle negotiating a small-radius vertical curved track at lower speed were simulated, and the results were compared to those adopting linear equivalent air-spring models. Results showed that there is no big difference between dynamic responses of car-body and electromagnet with linear equivalent air-spring models and non-linear air-spring ones, but the calculated expansion-contraction amount of linear equivalent air-spring model is significantly less than that of non-linear air-spring one; variation laws of vehicle unilateral 8 air springs’ vertical expansion-contraction deformation, rubber air bag inner pressure and vertical force conform to linear relationship; the simulation results based on nonlinear air-spring models can provide a basis for the design of secondary suspension system of high-speed maglev.

Key words

maglev vehicle / air spring suspension / dynamic curve negotiation

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LUO Yingkun1, ZHAO Chunfa1, LIANG Xin2, FENG Yang1. Dynamic responses of air-spring suspension of a maglev vehicle negotiating a small-radius vertical curved track[J]. Journal of Vibration and Shock, 2020, 39(17): 99-105

References

[1] Docquier N, Fisette P, Jeanmart H. Multiphysic modeling of railway vehicles equipped with pneumatic suspension [J]. Vehicle System Dynamics, 2007, 45(6): 505-524.
[2] Nieto A J, Morales A L, Gonzalez A, et al. An analytical model of pneumatic suspensions [J]. Journal of Sound and vibration, 2008, 313(1-2): 290-307.
[3] 原亮明, 宫相太, 王渊, 等. 铁道车辆空气弹簧-可变节流阀垂向动态特性的研究[J]. 铁道学报, 2005, 27(1): 40-44.
YUAN Liangming, GONG Xiangtai, WANG Yuan, et al. Research on Vertical Dynamic Character of Airspring-variable Throttle System for Railway Vehicle[J]. Journal of the China Railway Society, 2005, 27(1):40-44.
[4] 高红星, 池茂儒, 朱旻昊, 等. 空气弹簧模型研究[J]. 机械工程学报, 2015, 51(4): 108-115.
GAO Hongxing, CHI Maoru, ZHU Minhao, et al. Study on Air Spring Model[J]. Journal of Mechanical Engineering, 2015, 51(4): 108-115.
[5] Facchinetti A, Mazzola L, Stefano A, et al. Mathematical modelling of the secondary airspring suspension in railway vehicles and its effect on safety and ride comfort[J]. Vehicle System Dynamics, 2010, 48(S1): 429-449.
[6] Bruni S, Vinolas Jordi, Polach O, et al. Modelling of suspension components in a rail vehicle dynamics context[J]. Vehicle System Dynamics, 2011, 49(7), 1021–1072.
[7] Mazzola L, Berg M. Secondary suspension of railway vehicles - air spring modelling: performance and critical issues [J]. Journal of Rail & Rapid Transit, 2014, 228(3): 225-241.
[8] 戚壮, 李芾, 黄运华, 等. 高速列车系统动力学空气弹簧建模方法研究[J]. 振动与冲击, 2014, 33(12): 63-68.
QI Zhuang, LI Fu, HUANG Yunhua, et al. Modeling Methods of Air Spring in System Dynamics of A High-speed EMU[J]. Journal of Vibration and Shock, 2014, 33(12): 63-68.
[9] 戚壮, 李芾, 黄运华, 等. 高速动车组空气弹簧垂向动态特性研究[J]. 机械工程学报, 2015, 51(10): 129-136.
QI Zhuang, LI Fu, HUANG Yunhua, et al. Study on the Vertical Dynamic Characteristics of Air Spring Used in High-speed EMU[J]. Journal of Mechanical Engineering, 2015, 51(10): 129-136.
[10] 赵春发, 翟婉明. 磁浮车辆/轨道系统动力学(II): 建模与仿真[J]. 机械工程学报, 2005, 41(8):163-175.
ZHAO Chunfa, ZHAI Wanming. Maglev Vehicles/Track System Dynamics(II): Modeling and Simulation[J]. Journal of Mechanical Engineering, 2005, 41(8):163-175.
[11] Lee J S, Kwon S D, Kim M Y, et al. A parametric study on the dynamics of urban transit maglev vehicle running on flexible guideway bridges[J]. Journal of Sound and Vibration, 2009, 328(3): 301–317.
[12] 任晓博, 赵春发, 冯洋, 等. 中低速磁浮车辆-轨道-桥梁垂向耦合振动仿真分析[J]. 铁道标准设计, 2019, 63(2): 70-76.
REN Xiaobo, ZHAO Chunfa, FENG Yang, et al. Numerical Analysis on Vertical Coupled Vibration of Medium-low speed Maglev Vehicle-Track-Viaduct System[J]. Railway Standard Design, 2019, 63(2): 70-76.
[13] 吴祥明. 磁浮列车[M]. 上海: 上海科学技术出版社, 2003.
WU Xiangming. Maglev Train[M]. Shanghai: Shanghai Scientific & Technical Publishers, 2003.