Vibration characteristics of a multi-block high-temperature superconducting maglev system  

作　　者：Zhifang FU Lifeng ZHAO Xing LIANG 

机构地区：[1]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

出　　处：《Journal of Modern Transportation》2012年第2期98-102,共5页现代交通学报（英文版）

基　　金：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);the Fundamental Research Funds for the Central Universities (Nos. SWJTU09BR152, SWJTU09ZT24 and SWJTU11CX073)

摘　　要：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.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.

关 键 词：high-temperature superconductor vibration characteristics maglev system 

分 类 号：TM26[一般工业技术—材料科学与工程] TH113.1[电气工程—电工理论与新技术]