단기완성 기계설계

제 1 장 재료역학 ············································································· 1
1. 응력과 변형율 ················································································· 3
(1) 응력 ······································································································ 3
(2) 변형율 ·································································································· 5
(3) HOOK의 법칙 ··················································································· 6
(4) 포아송 비 ···························································································· 6
2. 인장, 압축, 전단 ···················································································· 9
(1) 자중에 의한 처짐 ··············································································· 9
(2) 열응력 ································································································ 10
(3) 탄성에너지 ························································································ 12
(4) 충격응력 ···························································································· 12
(5) 내압을 받는 원통 ············································································· 13
(6) 회전원환 ···························································································· 15
3. 법선, 전단, 조합응력 ··········································································· 16
(1) 경사단면의 인장하중 ······································································· 16
(2) 2축 응력 ···························································································· 16
(3) 평면응력 ···························································································· 16
4. 평면도형의 성질 ··················································································· 19
5. 비틀림 ···································································································· 20
6. 보의 처짐 ······························································································ 21
7. 보속의 굽힘응력 ··················································································· 24
8. 보속의 전단응력 ··················································································· 25
9. 보의 처짐 면적 모멘트 법 ································································· 25
10. 기둥 ······································································································ 27
제 2 장 기계설계 ··········································································· 29
1. 나사 ········································································································ 31
(1) 삼각나사(체결용) ·············································································· 31
(2) 사각나사(산각 ?): 작은 모멘트로 큰 힘 전달 ··················· 31
(3) 사다리꼴 나사(애크미 나사) 스러스트 전달 ····························· 31
(4) 톱니사사(산각 ?, ?) ························································· 32
(5) 너클나사(둥근나사, 산각 ?) ················································ 32
(6) 볼나사: 고효율, 고수명, 자동차 스티어링부 ······························· 32
(7) 리드와 피치 ······················································································ 32
(8) 나사의 역학 ······················································································ 33
(9) 나사의 효율 ······················································································ 33
(10) 볼트의 설계 ···················································································· 34
(11) 볼트의 종류 ···················································································· 35
2. 키(Key) ·································································································· 47
(1) 새들키(안장키, Saddle key) 1/100 ··············································· 47
(2) 평키(Flat key) ·················································································· 47
(3) 묻힘키(성크키, Sunk key) ······························································ 47
(4) 둥근키(핀키, Round key) ······························································· 47
(5) 접선키(Tangential key) ··································································· 47
(6) 미끄럼키(안내키, 패더키, Sliding key) ········································· 48

(7) 반달키(Woodruff key) ···································································· 48
(8) 원뿔키(Cone key) ············································································ 48
(9) 스플라인(Spline) ··············································································· 48
(10) 세레이션(Serration) ······································································· 48
(11) 묻힘 키 공식 ·················································································· 49
(12) 스플라인 키 ···················································································· 49
3. 핀 ············································································································ 52
4. 리벳 ········································································································ 54
(1) 리벳이음 ···························································································· 54
(2) 리베팅 ································································································ 55
(3) 리벳이음의 파괴와 강도 ································································· 56
(4) 리벳이음의 효율(세 효율 중 작은 값 선택) ································ 56
(5) 리벳이음의 설계 ··············································································· 57
(6) 보일러의 리벳이음 ··········································································· 57
(7) 편심하중을 받는 리벳이음 ······························································ 58
5. 용접 ········································································································ 62
(1) 용접이음의 장점 ··············································································· 62
(2) 용접이음의 단점 ··············································································· 62
(3) 용접의 종류 ······················································································ 62
(4) 용접이음의 강도 ··············································································· 62
6. 축 ············································································································ 73
(1) 작용하중에 따른 축의 분류 ···························································· 73
(2) 축의 재료 ·························································································· 73

(3) 축의 설계 ·························································································· 73
7. 커플링과 클러치 ·········································································· 83
7-1 커플링 ························································································· 83
(1) 원통 커플링(, 반쪽) ······································································ 83
(2) 분할원통 커플링 ··············································································· 83
(3) 플랜지 커플링 ··················································································· 83
(4) 플랜지 전단 ······················································································ 83
7-2 클러치 ························································································· 84
(1) 사각 클러치 ······················································································ 84
(2) 원판 클러치 ······················································································ 85
(3) 원추 클러치 ······················································································ 85
8. 베어링 ···································································································· 91
9. 마찰차 ·································································································· 101
(1) 마찰차의 특성 ················································································· 101
(2) 원통 마찰차 ···················································································· 101
(3) 홈붙이 마찰차 ················································································· 101
(4) 원추 마찰차 ···················································································· 102
(5) 무단변속 장치 ················································································· 103
10. 치차 ··································································································· 110
(1) 기어의 종류 ···················································································· 110
(2) 기어의 치형곡선 ············································································· 111
(3) 이의 간섭과 언더컷 ······································································· 112

(4) 스퍼기어의 설계 ············································································· 114
(5) 헬리컬기어의 설계 ········································································· 114
(6) 베벨기어의 설계 ············································································· 115
(7) 웜기어의 설계 ················································································· 116
(8) 유성기어 ·························································································· 116
11. 벨트 ··································································································· 132
(1) 평벨트 전동장치의 특징 ······························································· 132
(2) 평벨트의 설계 ················································································· 132
(3) V벨트 전동장치 특징 ···································································· 134
(4) V벨트 전동장치의 규격 ································································ 134
(5) V벨트 설계 ····················································································· 134
12. 체인 ··································································································· 142
(1) 체인전동장치의 설계 ····································································· 142
13. 브레이크 ···························································································· 148
14. 스프링 ································································································ 153
(1) 스프링 ······························································································ 153
(2) 스프링의 종류 ················································································· 153
(3) 스프링의 설계 ················································································· 154