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차세대 분산형 고속열차의 후미진동 저감에 관한 연구
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.advisor | 박태원 | - |
| dc.contributor.author | 전창성 | - |
| dc.date.accessioned | 2019-10-21T07:25:05Z | - |
| dc.date.available | 2019-10-21T07:25:05Z | - |
| dc.date.issued | 2015-02 | - |
| dc.identifier.other | 19130 | - |
| dc.identifier.uri | https://dspace.ajou.ac.kr/handle/2018.oak/18672 | - |
| dc.description | 학위논문(박사)--아주대학교 일반대학원 :기계공학과,2015. 2 | - |
| dc.description.tableofcontents | 제1장 서론 1 1.1연구배경 및 목적 1 1.2국내외 연구동향 3 1.3연구내용 및 범위 9 제2장 동역학 해석을 통한 시운전구간의 안전성 예측 12 2.1 철도차량의 동역학 이론 12 2.1.1 개요 12 2.1.2 운동방정식 13 2.1.3 선형 임계속도 해석 22 2.2 시운전 구간의 안전성 예측 27 2.2.1 차세대 분산형 고속열차 차량 동적 모델링 27 2.2.2 시운전 구간 궤도 불규칙 특성 모델링 32 2.2.3 시운전 구간 동적 주행 안정성 예측 38 2.2.3.1 주행 안전성 39 2.2.3.2 궤도 작용력 47 2.2.3.3 주행 거동 48 2.3 소결론 60 제3장 시운전 시험시의 후미진동 저감 63 3.1 개요 63 3.1.1 시운전 개요 63 3.1.2 계측시스템 65 3.2 EN 14363:2005에 따른 주행안정성 분석 68 3.3 300km/h미만 속도에서의 후미진동 저감 79 3.3.1 후미진동 분석 79 3.3.2 요댐퍼 방향변경에 의한 후미진동 저감 82 3.4 350km/h 속도대에서의 후미진동 저감 85 3.4.1 350km/h까지의 주행시험 데이터 85 3.4.2 차량간 요댐퍼 설치에 의한 후미진동 저감 86 3.5 380km/h 속도대에서의 후미진동 저감 88 3.5.1 387km/h 주행시험 데이터 분석 88 3.5.2 요댐퍼 댐핑계수 증가에 의한 후미진동 저감 89 3.6 410km/h이상 속도에서의 후미진동 저감 방안 92 3.7 누적주행거리에 따른 후미진동 96 3.7.1 누적주행거리 증가에 따른 후미진동 96 3.7.2 후미진동 영향인자 고찰 97 3.7.2.1 차륜 답면구배 97 3.7.2.2 안티 요댐퍼 108 3.7.2.3 마찰계수 112 3.7.2.4 횡방향 감쇄력 113 3.7.3 요댐퍼 설치각도 조정에 의한 후미진동 저감 117 3.8 소결론 121 제4장 현가장치 최적화를 통한 후미진동 개선 방안 123 4.1 최적화 개요 123 4.2 현가장치 특성치에 대한 민감도 분석 125 4.2.1 실험계획법 125 4.2.2 민감도 분석 130 4.3 반응 표면 분석법을 이용한 최적화 133 4.3.1 중회귀 모형 133 4.3.2 최적화 결과 140 4.4 소결론 142 제5장 결론 143 5.1 결론 143 5.2 향후 연구과제 145 참고문헌 146 부 록 151 Abstract 155 | - |
| dc.language.iso | kor | - |
| dc.publisher | The Graduate School, Ajou University | - |
| dc.rights | 아주대학교 논문은 저작권에 의해 보호받습니다. | - |
| dc.title | 차세대 분산형 고속열차의 후미진동 저감에 관한 연구 | - |
| dc.title.alternative | Chang Sung Jeon | - |
| dc.type | Thesis | - |
| dc.contributor.affiliation | 아주대학교 일반대학원 | - |
| dc.contributor.alternativeName | Chang Sung Jeon | - |
| dc.contributor.department | 일반대학원 기계공학과 | - |
| dc.date.awarded | 2015. 2 | - |
| dc.description.degree | Doctoral | - |
| dc.identifier.localId | 695810 | - |
| dc.identifier.url | http://dcoll.ajou.ac.kr:9080/dcollection/jsp/common/DcLoOrgPer.jsp?sItemId=000000019130 | - |
| dc.subject.keyword | 동역학 | - |
| dc.description.alternativeAbstract | The dynamic behavior of HEMU-430X, the Korean next -generat ion high-speed train, was invest igated through numerical analysis and an on -t rack test . Before the on-t rack test , VAMPIRE analysis resul ts showed that HEMU-430X was expected to sway st rongly at the tai l end because of the yaw damper posi t ion. Some countermeasures such as changing the wheel profi le, damping coeff icient of the 2nd lateral damper, and damping coeff icient of the yaw damper were taken into account to solve this problem. By changing the yaw damper posi ton, the hunt ing mot ion was expected to disappear effect ively. In the on -track test , the dynamic behavior of HEMU-430X was assessed according to the EN 14363 standard by measuring the carbody, bogie, and axle accelerat ions, and i t sat isf ied the safety cri teria. From the viewpoint of the running characterist ics, the RMS value of the carbody lateral accelerat ion occasional ly exceeded the cri teria; however, this was related to the ride qual i ty and not the safety assessment . Thehunt ing mot ion appeared at speeds of 150, 350, and 387 km/h, and countermeasures such as the changing the yaw damper posi t ion, instal l ing carbody to carbody dampers, and increasing the damping coeff icient of th e MC car yaw damper, respect ively, were taken to reduce these vibrat ions; then, a highest test speed of 421.4 km/h was achieved. Subsequent ly, the cr i t ical speed tended to decrease wi th mi leage; this was at t ributed to carbody hunt ing. To suppress this carbody hunt ing, the relat ion between the cri t ical speed and the yaw damper proper ty was invest igated in detai l . Carbody hunt ing was at t ributed to excessive lateral damping ar ising f rom improper design of the yaw damper instal l angle. To solve this problem, the removal of some yaw dampers was examined in an on-track test and found to be somewhat effect ive. The revised design was proposed based on numer ical analysis, and i t wi l l be verified in an on-track test . Final ly, the parameters of suspension were opt imize d to improve cri t ical speed. | - |
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