지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.12
- 수록면
- 1,075 - 1,089 (15page)
- DOI
- 10.24284/JKOSUR.2021.12.9.4.1075
이용수
초록· 키워드
오류제보하기
The effect of the aerodynamic force acting on the vehicle by crosswind is one of the most critical problem for safety. Further development of the Ethiopian railway transport calls for the solution of existing problems among which aerodynamic effect is regarded most important. The modification design proved that the Ethiopian train needs aerodynamic effect improvement on the technical and economical performances of train leading vehicles. This study numerically evaluated the robustness of aerodynamic and dynamic driving stability effects on the Ethiopian inter-city train locomotive. The numerical tests have conducted under 12 m/s speed crosswind conditions at straight, and curved rail tracks independently. This case study has estimated and evaluated the comparison of driving stability in between the baseline and modified models at the maximum operational speed. This evaluation study proved that all the rotational moment values, which occur due to aerodynamic loads, are less than all resistance moment values, which do due to train payload reaction, on both models. Therefore, the existing and the modified models have been guaranteed to operate with in 160km/h at straight and 72km/h (20m/s) limit speed at curved rail track.
목차
요약(Abstract)
1. Introduction
2. Ethiopian train locomotive type and its body shape
3. Boundary conditions and control volume
4. Aerodynamic stability of train locomotive models at straight track
5. Dynamic stability of locomotive models on curved rail track
6. Result and discussion
7. Conclusion
References
참고문헌 (15)
참고문헌 신청
C. O. C. a. P. E. D. Yehualaeshet Jemere / 2012 / Addis Ababa Light Rail Transit Project," Ethiopian Railways Corporation / Ababa, Ethiopia
X.-m. S. / 2011 / Aerodynamic modeling and stability analysis of a high-speed train under strong rain and crosswind conditions / Journal of Zhejiang University-SCIENCE A 12(12):964~970
Nachiyappan Venkatasalam / 2013 / Crosswind assessment of trains on different ground configurations / SE-100 44 Stockholm
X. Miao / 2020 / applied sciences Aerodynamic Performance of a High-Speed Train Passing through Three Standard Tunnel Junctions under Crosswinds
Zhiyong Yao / 2020 / The effect of moving train on the aerodynamic performances of train-bridge system with a crosswind / Engineering Applications of Computational Fluid Mechanics 14(1):222~235
X.-m. S. / 2011 / Aerodynamic modeling and stability analysis of a high-speed train under strong rain and crosswind conditions / Journal of Zhejiang University-SCIENCE A 12(12):964~970
Nachiyappan Venkatasalam / 2013 / Crosswind assessment of trains on different ground configurations / SE-100 44 Stockholm
X. Miao / 2020 / applied sciences Aerodynamic Performance of a High-Speed Train Passing through Three Standard Tunnel Junctions under Crosswinds
Zhiyong Yao / 2020 / The effect of moving train on the aerodynamic performances of train-bridge system with a crosswind / Engineering Applications of Computational Fluid Mechanics 14(1):222~235
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