Analysis of dynamic response of the high-speed EMS maglev vehicle/guideway coupling system with random irregularity

Authors: Shi, Jin¹; Wei, Qingchao²; Zhao, Yang²

Source: Vehicle System Dynamics, Volume 45, Number 12, December 2007 , pp. 1077-1095(19)

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Abstract:

A new dynamic model of a high-speed EMS maglev vehicle/guideway interaction is presented. The model considers the vehicle and the guideway as an integral system and couples vertical interaction with lateral interaction. The vehicle subsystem is modeled as a multi-body system, which runs on the guideway with a constant velocity. The guideway substructure is modeled as an elastic beam. The attractive magnetic forces between vehicle and guideway are decided by controller, observer, and filter. A special simulation program is developed. Numerical results of the program are compared with test results. The results show that the coupling model is appropriate and the simulation program is credible primarily. Applications of coupling model to the investigation of the effect of irregularities on maglev system are reported at the end of the paper. The studies in this paper can be used to evaluate and optimize dynamic performances of the high-speed EMS maglev system.

Keywords: Maglev vehicle; Guideway; Feedback control; Dynamics; Numerical simulation

Document Type: Research article

DOI: http://dx.doi.org/10.1080/00423110601178441

Affiliations: 1: Urban Rail Transit and Railway Engineering Department, Tongji University, Shanghai, People's Republic of China,School of Civil Engineering and Architecture, Beijing Jiaotong University, Beijing, People's Republic of China 2: School of Civil Engineering and Architecture, Beijing Jiaotong University, Beijing, People's Republic of China

Publication date: 2007-12-01