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JMT 2012, Vol. 20 Issue (2) :98-102    DOI: 10.3969/j.issn.2095-087X.2012.02.007
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Vibration characteristics of a multi-block high-temperature superconducting maglev system
Zhifang FU, Lifeng ZHAO, Xing LIANG*
Key Laboratory of Magnetic Levitation Technologies and Maglev Trains (Ministry of Education of China), Superconductivity and New Energy R&D Center, Southwest Jiaotong University, Chengdu 610031, China

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Abstract The multi-block high-temperature superconducting (HTS) maglev system has more complicated dynamic characteristics than the single-block HTS maglev system. To study its vibration characteristics, we designed a maglev measurement system. The system responses at the excitation frequencies of 2, 3 and 15 Hz were examined. Results show that the responses under excitation frequencies of 2 and 3 Hz include a 6 Hz component, which means that the maglev system is a critical nonlinear system. Moreover, the 6 Hz component is much stronger than the 2 Hz or 3 Hz components in the response spectra. There is the interaction between excitation and response. Under an excitation frequency of 15 Hz, intensified low-frequency perturbations were observed.
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Zhifang FU
Lifeng ZHAO
Xing LIANG
Keywordshigh-temperature superconductor   vibration characteristics   maglev system     
Received 2012-05-10;
Fund:

This work was supported by the PCSIRT of the Ministry of Education of China (No. IRT0751), the National High Technology Research and Development Program of China (863 Program: No. 2007AA03Z203); the National Natural Science Foundation of China (Nos. 50588201 and 50872116); the Research Fund for the Doctoral Program of Higher Education of China (No. SRFDP200806130023); and the Fundamental Research Funds for the Central Universities (Nos. SWJTU09BR152, SWJTU09ZT24 and SWJTU11CX073).

Cite this article:   
Zhifang FU, Lifeng ZHAO, Xing LIANG.Vibration characteristics of a multi-block high-temperature superconducting maglev system[J]  JMT, 2012,V20(2): 98-102
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http://jmt.swjtu.edu.cn/EN/10.3969/j.issn.2095-087X.2012.02.007      or     http://jmt.swjtu.edu.cn/EN/Y2012/V20/I2/98
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