Journal
VEHICLE SYSTEM DYNAMICS
Volume 53, Issue 4, Pages 587-601Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/00423114.2015.1013039
Keywords
flexible guideway; feedback control; resonance; EMS-type Maglev
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Funding
- Railroad Technology Research Program - Ministry of Land, Infrastructure and Transport of Korean government [14 RTRP-B070539-02]
- National Research Council of Science & Technology (NST), Republic of Korea [NK190F] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Dynamic instability, that is, resonance, may occur on an electromagnetic suspension-type Maglev that runs over the elevated guideway, particularly at very low speeds, due to the flexibility of the guideway. An analysis of the dynamic interaction between the vehicle and guideway is required at the design stage to investigate such instability, setting slender guideway in design direction for reducing construction costs. In addition, it is essential to design an effective control algorithm to solve the problem of instability. In this article, a more detailed model for the dynamic interaction of vehicle/guideway is proposed. The proposed model incorporates a 3D full vehicle model based on virtual prototyping, flexible guideway by a modal superposition method and levitation electromagnets including feedback controller into an integrated model. By applying the proposed model to an urban Maglev vehicle newly developed for commercial application, an analysis of the instability phenomenon and an investigation of air gap control performance are carried out through a simulation.
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