| Project/Area Number |
05650227
|
|---|
| Research Category |
Grant-in-Aid for General Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Dynamics/Control
|
|---|
| Research Institution | Tokyo University of Agriculture and Technology |
|---|
Principal Investigator |
NAGAI Masao Tokyo Univ. of Agriculture and Technology, Faculty of Technology, Professor, 工学部, 教授 (10111634)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
ONDA Minoru Tokyo Univ. of Agriculture and Technology, Faculty of Technology, Research Assis, 工学部, 助手 (80015031)
TAGAWA Yasutaka Tokyo Univ. of Agriculture and Technology, Faculty of Technology, Associate Prof, 工学部, 助教授 (20216807)
|
|---|
| Project Period (FY) |
1993 – 1994
|
| Project Status |
Completed (Fiscal Year 1994)
|
| Budget Amount *help |
¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1994: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1993: ¥1,700,000 (Direct Cost: ¥1,700,000)
|
|---|
| Keywords | Magnetic Levitation / Magnetic Coupling / Vibration / Permanent Magnet / Electromagnet |
|---|
| Research Abstract |
Magnetically levitated (MAGLEV) vehicle systems have been researched for future high speed transportation. It is specially important to investigate dynamic characteristics for running stability, safety and ride quality at high speed. This paper deals with dynamic characteristics of repulsive type MAGLEV systems using electro-dynamic suspension (EDS). As the electrodynamic suspension is inherently stable but of low damping character, mechanical resonance is liable to occur in levitated body motions. Moreover, as it uses conductive eddy current in coils or sheets on guideway, the repulsive force is influenced by magnetic field generated by adjacent magnets located in longitudinal direction. This paper investigates magnetic coupling characteristics between two independent levitated bodies with a permanent magnet and an electromagnet above an aluminum rotating plate and dynamic characteristics of heave and pitch motions of two-degree-of-freedom levitated body running above the plate.
The computer simulation and experimental results clearly show that the rear levitation gap and magnetic stiffness are influenced by the distance between the two magnets, and that the dynamic stability is greatly improved by the additional active control circuit.
|
