DYNAMIC RESPONSE ANALYSIS OF SINGLE-SPAN GUIDEWAY CAUSED BY HIGH SPEED MAGLEV TRAIN

Authors

  • JIN SHI SCHOOL OF CIVIL ENGINEERING, BEIJING JIAOTONG UNIVERSITY, BEIJING 100044, CHINA
  • YING JIE WANG SCHOOL OF CIVIL ENGINEERING, BEIJING JIAOTONG UNIVERSITY, BEIJING 100044, CHINA

Keywords:

MAGLEV TRAIN, GUIDEWAY, DYNAMIC RESPONSE, RESONANT, AIR GAP

Abstract

 HIGH SPEED MAGLEV IS ONE OF THE MOST IMPORTANT REFORMATIONS IN THE GROUND TRANSPORTATION SYSTEMS BECAUSE OF ITS NO PHYSICAL CONTACT NATURE. THIS PAPER INTENDS TO STUDY THE DYNAMIC RESPONSE OF THE SINGLE-SPAN GUIDEWAY INDUCED BY MOVING MAGLEV TRAIN. THE DYNAMIC MODEL OF THE MAGLEV TRAIN-GUIDEWAY SYSTEM IS ESTABLISHED. IN THIS MODEL, A MAGLEV TRAIN CONSISTS OF THREE VEHICLES AND EACH VEHICLE IS REGARDED AS A MULTIBODY SYSTEM WITH 34 DEGREES-OF-FREEDOM. THE GUIDEWAY IS MODELED AS A SIMPLY SUPPORTED BEAM. CONSIDERING THE MOTION-DEPENDENT NATURE OF ELECTROMAGNETIC FORCES IN THE MAGLEV SYSTEM, AN ITERATIVE APPROACH IS PRESENTED TO COMPUTE THE DYNAMIC RESPONSE OF A MAGLEV TRAIN-GUIDEWAY SYSTEM. THE HISTORIES OF THE TRAIN TRAVERSING THE GUIDEWAYS ARE SIMULATED AND THE DYNAMIC RESPONSES OF THE GUIDEWAY AND THE TRAIN VEHICLES ARE CALCULATED. A FIELD EXPERIMENT IS CARRIED OUT TO VERIFY THE RESULTS OF THE ANALYSIS. THE RESONANT CONDITIONS OF SINGLE-SPAN GUIDEWAY ARE ANALYZED. THE RESULTS SHOW THAT ALL THE DYNAMIC INDEXES OF TRAIN-GUIDEWAY SYSTEM ARE FAR LESS THAN PERMISSIVE VALUES OF RAILWAY AND MAGLEV SYSTEM, THE VERTICAL RESONANT OF GUIDEWAYS CAUSED BY PERIODICAL EXCITATIONS OF THE TRAIN WILL NOT HAPPEN.

Author Biographies

JIN SHI, SCHOOL OF CIVIL ENGINEERING, BEIJING JIAOTONG UNIVERSITY, BEIJING 100044, CHINA

DEPARTMENT OF RAILWAY ENGINEERING

YING JIE WANG, SCHOOL OF CIVIL ENGINEERING, BEIJING JIAOTONG UNIVERSITY, BEIJING 100044, CHINA

DEPARTMENT OF RAILWAY ENGINEERING

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Published

2011-09-05

Issue

Vol. 8 No. 3 (2011)

Section

Articles

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