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고속전철의 공기역학적 성능향상을 위한 공기저항 저감 연구 : Experimental Studies on Aerodynamic Drag Reduction for High Speed Train
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.advisor | 김규홍 | - |
| dc.contributor.author | 유진선 | - |
| dc.date.accessioned | 2017-07-14T03:30:18Z | - |
| dc.date.available | 2017-07-14T03:30:18Z | - |
| dc.date.issued | 2013-02 | - |
| dc.identifier.other | 000000010436 | - |
| dc.identifier.uri | https://hdl.handle.net/10371/123700 | - |
| dc.description | 학위논문 (석사)-- 서울대학교 대학원 : 기계항공공학부, 2013. 2. 김규홍. | - |
| dc.description.abstract | 한국형 고속열차 HEMU-430x에 대하여 공기역학적 성능향상
을 위한 공기저항 저감을 위한 연구를 수행하였다. 이를 위해 HEMU-430x의 주행 저항식을 도출하였으며 이 과정 중 실험 모델 개선을 통하여 실제 결과와 비교적 잘 일치하는 주행 저항식을 도출하였다. 또한 공기역학적 항력 저감을 위한 요 소 분석을 실험을 통하여 조사하였다. 마지막으로 앞선 항력 요소분석을 바탕으로 공력성능 개선안을 제시하였다. 첫째, 항력 커버형상 개선모델을 설정하여 비교하였을 경우 현재 운행 중인 HEMU-430x의 시제차량에 대하여 11% 이상의 공 기역학적 항력이 감소될 수 있는 것을 확인한다. 두번째로 Long Connected Roof를 제시하여 모델 시험을 실시하여 15% 이상의 공기역학적 항력이 감소되는 것을 확인한다. | - |
| dc.description.tableofcontents | 목차 ······································································································1
표 차례 ································································································2 그림 차례 ····························································································3 1. 서론 ·································································································4 1.1 연구배경 ·······················································································4 1.2 고속열차의 공기역학 특징 ························································5 1.3 연구목표 ·······················································································7 2. 실험 장비 및 절차 ·······································································11 2.1 열차 모델 시험 ··········································································11 2.1.1 HEMU-430x 1/20 축소 모델 ················································11 2.1.2 항력 측정 장비 ·······································································12 2.1.3 항력 측정 시스템 신뢰성 확보 ············································12 2.1.4 차량 간 압력 보정 ··································································13 2.2 주행 저항식 도출········································································14 3. 공기역학적 성능 개선 연구 ·······················································21 3.1 HEMU-430x 주행 저항식 도출················································21 3.2 공기역학적 항력 저감 요소 분석 ············································23 3.2.1 공기역학적 항력 저감 요소 분석 - 대차의 변화·············· 23 3.2.2 공기역학적 항력 저감 요소 분석 - 대차의 변화·············· 25 3.2.3 공기역학적 항력 저감 요소 분석 - 상부 항력 저감 커버 26 3.3 공력성능 개선안 제시 ······························································40 3.3.1 공력성능 개선안 제시 1 - 커버형상 개선 ·························40 3.3.2 공력성능 개선안 제시 2 - 커버형상 개선 ·························41 4. 결론 ······························································································45 5. 참고문헌 ······················································································46 | - |
| dc.format | application/pdf | - |
| dc.format.extent | 2546639 bytes | - |
| dc.format.medium | application/pdf | - |
| dc.language.iso | ko | - |
| dc.publisher | 서울대학교 대학원 | - |
| dc.subject | 고속열차 | - |
| dc.subject | 공기역학적 항력 | - |
| dc.subject | 열차 상부 커버 | - |
| dc.subject | 팬토그래프 커버 | - |
| dc.subject.ddc | 621 | - |
| dc.title | 고속전철의 공기역학적 성능향상을 위한 공기저항 저감 연구 | - |
| dc.title.alternative | Experimental Studies on Aerodynamic Drag Reduction for High Speed Train | - |
| dc.type | Thesis | - |
| dc.description.degree | Master | - |
| dc.citation.pages | 48 | - |
| dc.contributor.affiliation | 공과대학 기계항공공학부 | - |
| dc.date.awarded | 2013-02 | - |
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