개인구독
소속 기관이 없으신 경우, 개인 정기구독을 하시면 저렴하게
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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
- 학위논문
- 저자정보
- 발행연도
- 2013
- 저작권
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The engine of electric vehicle is replaced by electric motor, there is a difference between electric vehicle and internal combustion engine but the biggest problem is the battery that acts as a source of energy.
The capacity of the battery, lightweight and miniaturized and short charging time for electric vehicles is an essential precondition of practical use. therefore, the biggest obstacles of the current development of electric vehicles are the limited capacity of the electric battery. the electric vehicle weight reduction is inevitable, but there are lots of difficulties on the light weight of the products.
To improve the strength of the differential gear, the material of diff-side gear and pinion gear, the improvement of heat treatment and the tooth modifications are needed.
First, the mold design is carried out after tooth design. after this, the process analysis would be based on this, and the prototype will be produced.
It is the purpose to design and manufacture this electric vehicle''s differential gear set to reach an efficiency of general differential gear set while makes it''s weight lightening as much as possible.
In conclusion, until now, this technology is not generalized, but it will be increased more and more through many applications. so, in order to get cold forging bevel gear technology for electric vehicle by ourselves, this thesis has to be conducted.
As previously stated, this paper was written to make use of cold forging differential gear''s manufacturing process and confirm it''s characteristics and prove it''s strength, contact pattern, profile error between manufactured gear by using researched process and former used gear.
The capacity of the battery, lightweight and miniaturized and short charging time for electric vehicles is an essential precondition of practical use. therefore, the biggest obstacles of the current development of electric vehicles are the limited capacity of the electric battery. the electric vehicle weight reduction is inevitable, but there are lots of difficulties on the light weight of the products.
To improve the strength of the differential gear, the material of diff-side gear and pinion gear, the improvement of heat treatment and the tooth modifications are needed.
First, the mold design is carried out after tooth design. after this, the process analysis would be based on this, and the prototype will be produced.
It is the purpose to design and manufacture this electric vehicle''s differential gear set to reach an efficiency of general differential gear set while makes it''s weight lightening as much as possible.
In conclusion, until now, this technology is not generalized, but it will be increased more and more through many applications. so, in order to get cold forging bevel gear technology for electric vehicle by ourselves, this thesis has to be conducted.
As previously stated, this paper was written to make use of cold forging differential gear''s manufacturing process and confirm it''s characteristics and prove it''s strength, contact pattern, profile error between manufactured gear by using researched process and former used gear.
목차
Ⅰ. 서 론 11.1 연구 배경 11.2 연구 목적 3Ⅱ. 디퍼런셜 기어 42.1 디퍼런셜 기어의 원리 42.2 베벨기어의 설계 52.3 베벨기어의 크기와 잇수 선정 82.4 직선 베벨기어에 작용하는 하중 11Ⅲ. 디프-사이드 기어, 피니언 기어 설계 133.1 개발 프로세스 133.2 디프-사이드 기어 설계 143.3 피니언 기어 설계 163.4 디프-케이스 설계 18Ⅳ. 단조 공정 설계 204.1 단조 및 열처리 공정 204.2 CAE를 활용한 디프-사이드, 피니언 기어 공정설계 및 해석 214.2.1 디프-사이드 기어, 피니언 기어의 공정설계 214.2.2 디프-사이드 기어, 피니언 기어의 공정해석 234.3 CAE를 활용한 금형설계 및 제작 294.3.1 디프-사이드 기어, 피니언 기어의 금형설계 294.3.2 디프-사이드 기어, 피니언 기어의 금형제작 32Ⅴ. 단조 시제품 제작 및 시험평가 365.1 냉간단조 시제품 성형 365.2 시제품 특성 실험 및 평가 405.2.1 기어 파단강도 측정 405.2.2 기어 파단강도 측정결과 425.2.3 기어 치의 편심 및 치형오차 측정결과 465.2.4 기어 접촉률 측정결과 50Ⅵ. 결 론 52참고문헌 54
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