[1] Teng Yanfeng, Teng Nianguan, Kou Xinjian,. Vibration analysis of maglev three-span rigid frame bridgeconsidering magnetic force [J]. Journal of Southeast University (English Edition), 2007, 23 (4): 571-576. [doi:10.3969/j.issn.1003-7985.2007.04.019]
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Vibration analysis of maglev three-span rigid frame bridgeconsidering magnetic force(
)
考虑电磁力作用下磁浮三跨刚构桥振动分析
)Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]
- Volumn:
- 23
- Issue:
- 2007 4
- Page:
- 571-576
- Research Field:
- Traffic and Transportation Engineering
- Publishing date:
- 2007-12-30
Info
- Title:
- Vibration analysis of maglev three-span rigid frame bridgeconsidering magnetic force
- 考虑电磁力作用下磁浮三跨刚构桥振动分析
- Author(s):
- Teng Yanfeng; Teng Nianguan; Kou Xinjian
- School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China
- Keywords:
- maglev transportation system; three-span rigid frame bridge; vertical vibration; magnetic force; control system
- PACS:
- U441+.4
- DOI:
- 10.3969/j.issn.1003-7985.2007.04.019
- Abstract:
- The dynamic interaction between the maglev vehicle and the three-span rigid frame bridge is discussed. With the consideration of magnetic force, the interaction model is developed. Numerical simulations are performed to study the dynamic characteristics of the bridge during vehicle movement along the bridge. The results show that a reasonable value of the linear stiffness ratio of columns to beams is between 2.0 and 3.0. The dynamic responses of the bridge are aggravated with the decrease in bending rigidity and the increase in vehicle speed and the span ratio of the bridge. It is suggested that a definite way is to control impact coefficients and acceleration in the dynamic design of the bridge. It is unsuitable to adopt the moving load model and the moving mass model in the design. The proposed results can serve in the design of high-speed maglev three-span rigid frame bridges.
- 研究了磁浮车辆与三跨刚构桥之间的耦合振动.考虑主动控制电磁悬浮力的作用, 建立了磁浮车辆-桥梁耦合振动分析模型.使用数值方法对车辆通过时桥梁的动力反应进行了分析.结果表明桥梁的梁墩线刚度比宜在2.0到3.0之间.桥梁的动力反应随着桥梁刚度的降低、车速和跨度比的增加而加剧.建议桥梁动力设计中以控制桥梁的冲击系数和振动加速度为主.移动荷载模型和移动质量模型在磁浮桥梁动力设计中均不适用.所得结论可为高速磁浮三跨刚构桥设计提供理论依据.
References:
[1] Wang S K.Levitation and guidance of a maglev vehicle using optimal preview control[D].Pittsburgh:Carnegie Mellon University, 1995.
[2] Wu Jianjun, Zheng Xiaojing, Zhou Youhe.Numerical analysis on dynamic control of five degree of freedom maglev vehicle moving on flexible bridges[J].Journal of Sound and Vibration, 2000, 235(1):43-61.
[3] Sinha P K, Pechev A N.Nonlinear H∞ controllers for electromagnetic suspension systems[J].IEEE Transactions on Automatic Control, 2004, 49(4):563-568.
[4] Meisinger R.Vehicle-guideway dynamics of a high-speed maglev train[J].Chinese Quarterly of Mechanics, 1991, 12(1):9-20.
[5] Cai Y, Chen S S, Rote D M, et al.Vehicle bridge dynamic interaction for high speed vehicles on a flexible bridge[J].Journal of Sound and Vibration, 1994, 175(5):625-646.
[6] Zhao Chunfa, Zhai Wanming.Maglev vehicle/bridge vertical random response and ride quality[J].Vehicle System Dynamics, 2002, 38(3):185-210.
[7] Shi Jin, Wei Qingchao.The effect of bridge irregularity on the dynamic characteristics of high-speed maglev railway[J].Engineering Mechanics, 2006, 23(1):154-159.(in Chinese)
[8] Teng Yanfeng, Teng Nianguan, Huang Xingchun, et al.Vibration analysis of a simply supported beam traversed by uniform distributed moving mass[C]//Proceedings of the China Association for Science and Technology.Beijing:Science Press, Science Press USA Inc, 2006, 3(3):710-715.
[9] Shi Ji, Wei Qingchao, Zhao Yang.Dynamic simulation of maglev with two degree on flexible guideway[J].Journal of System Simulation, 2007, 19(3):519-523.(in Chinese)
[10] Hong Huajie, Li Jie.The analysis of the equivalence of substituting the controllers with the spring-dampers in maglev system model[J].Journal of National University of Defense Technology, 2005, 27(4):101-105.(in Chinese)
Memo
- Memo:
- Biographies: Teng Yanfeng(1977—), male, graduate;Teng Nianguan(corresponding author), male, doctor, professor, ngteng@sjtu.edu.cn.