Earticle

초록

영어

The Electrodynamic Suspension (EDS) systems are gaining significant attention as next-generation high-speed transportation technology due to their inherent self-stabilizing characteristics and superior lift-to-drag ratios. Conventional figure-eight null-flux coils used in EDS systems provide the advantage of simultaneously realizing levitation and guidance within a single structure. However, due to their structural mechanism, the levitation and guidance forces are strongly coupled, which limits the independent enhancement of guidance performance. To address the limitations of conventional cross-connected null-flux coils, this study proposes an independent inner–outer double-circuit asymmetric null-flux coil structure. The guidance characteristics of the proposed structure were quantitatively evaluated and compared with those of the conventional symmetric model using three-dimensional Finite Element Method (3D FEM) analysis. The simulation results demonstrate that the proposed asymmetric coil achieves approximately 6.47% improvement in guidance force at a 50 mm lateral displacement compared to the conventional model (20.08 kN), indicating its strong potential to enhance the driving stability of EDS systems.

목차

Abstract
1. 서론
2. 유도 반발식 부상 시스템 이론
2.1. 널플럭스 코일의 부상 및 안내 원리
2.2. 기존 교차 연결 널플럭스 코일의 작동 메커니즘
3. 독립 이중 회로 비대칭 널플럭스 코일
3.1. 전기적 분리를 위한 내외측 이중 회로 설계
3.2. 수직 기하학적 비대칭성의 도입
4. 3차원 유한요소해석 기반 전자기 해석 방법
4.1. 해석 모델 구성 및 재질 특성
4.2. 시뮬레이션 조건 및 솔버 설정
5. 전자기력 해석 결과 및 평가
5.1. 수평 변위에 따른 전자기력 해석 결과
5.2. 제안된 모델의 안내력 향상 원인 분석
6. 결론
ACKNOWLEDGMENT
REFERENCES

키워드

저자

• Sihyeon Park [ Korea Maritime & Ocean University, Busan, Korea ]
• Chang-Young Lee [ Korea Railroad Research Institute, Uiwang-si, Korea ]
• Su-Yong Choi [ Korea Railroad Research Institute, Uiwang-si, Korea ]
• Seonghun Jung [ Korea Maritime & Ocean University, Busan, Korea ]
• Young Jin Hwang [ Korea Maritime & Ocean University, Busan, Korea ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국초전도·저온논문지 (구 한국초전도저온공학회논문지) [Progress in Superconductivity and Cryogenics]

• 간기

  계간

• pISSN

  1229-3008

• eISSN

  2287-6251

• 수록기간

  1999~2026

• 등재여부

  KCI 등재,SCOPUS

• 십진분류

  KDC 427 DDC 537