기계요소설계

CHAPTER 01 기계설계의 서론-1
1. 기계설계의 개요·······································1
2. 기계 요소 설계········································1
3. 기계설계에 사용되는 SI 단위 ····························2
4. 속도와 가속도········································7
5. 하중(load) ··········································10
6. 응력 (Stress) ········································12
7. 변형율(strain) ········································14
8. 후크의 법칙과 탄성계수 ·······························15
9. 응력집중(stress concentration) ·························16
10. 안전계수 (safety factor) 또는 안전율····················17
10. 크리프(creep) ·······································18
12. 피로··············································18
13. 피로한도(S-N곡선) ···································19
계 산 문 제 ············································21
기출 및 예상문제 ·······································23

CHAPTER 02 나사(SCREW) -27
1. 나사(SCREW) ·······································27
2. 나사의 개요·········································27
3. 나사의 종류와 특징···································31
4. 작은나사와 세트스크루우·······························40
5. 볼트 및 너트 종류····································43
6. 너트···············································46
7. 와셔(washer) ········································48
8. 너트의 풀림방지······································48
9. 나사의 설계·········································49
10. 나사의 회전력(Torque) ·······························52
11. 나사의 자립조건·····································56
12. 나사의 효율········································57
13. 너트의 설계········································58
14. 나사 잭 소요동력····································59
15. 각종 구멍··········································60
16. 스패너·············································61
계 산 문 제 ············································62
기출 및 예상문제 ·······································66

CHAPTER 03 키(KEY)-77
1. 키(key)의 개요 ······································77
2. 키(key) 가공 방법 ···································78
3. 키의 종류 ··········································78
4. 전달력이 큰 순서(동력전달순서) ·························83
5. 키설계(표시법 : 폭 x 높이 x 길이 [ ] ····················83
6. 스플라인의 치면강도(Excel 프로그램 이용이 가능함) ·········85
계 산 문 제 ············································87
기출 및 예상문제 ······································92

CHAPTER 04 핀 (pin)-95
1. 핀(pin)의 개요·······································95
2. 핀의 종류···········································95
3. 너클조인트(Knuckle jount) 너클핀 ······················96
4. 고정링 (스냅링) ······································98
계 산 문 제 ···········································100
기출 및 예상문제 ······································101

CHAPTER 05 코터(cotter)-103
1. 코터(cotter)의 개요··································103
계 산 문 제 ···········································108
기출 및 예상문제 ······································110

CHAPTER 06 리벳(Rivet)-113
1. 리벳의 개요 ········································113
2. 리벳이음 장단점 ····································113
3. 리벳작업 ··········································114
4. 리벳의 재질·········································115
5. 리벳작업의 종류 ····································115
6. 리벳이음의 종류·····································117
7. 리벳의 파괴강도 ····································118
8. 리벳의 지름과 피치 크기······························122
9. 리벳이음의 효율·····································123
10. 보일러의 구조 ·····································124
11. 보일러용 리벳이음의 선정·····························126
계 산 문 제 ···········································128
기출 및 예상문제 ·······································132

CHAPTER 07 용접(welding)-137
1. 용접(welding)의 개요 ································137
2. 용접의 장단점·······································137
3. 용접의 종류········································138
4. 용접의 분류·········································141
5. 용접이음의 종류·····································144
6. 용접이음의 강도·····································146
7. 용접 이음에 대한 응력 계산식·························· 150
계 산 문 제 ···········································152
기출 및 예상문제 ·······································155

CHAPTER 08 축(shaft)-157
1. 축(shaft)의 개요 ····································157
2. 축에 작용하는 하중에 따른 분류 ························157
3. 축의 바깥 모양에 따른 분류····························158
4. 차축(axal) 재질 ····································159
5. 축 설계에서 고려해야 할 사항··························159
6. 축의 설계 ·········································161
7. 굽힘모우멘와 비틀림모우멘를 동시에 받는 축(정하중) ········ 166
8. 굽힘모우멘와 비틀림모우멘를 동시에 받는 축(동하중) ········167
9. 축의 강성설계 ·····································168
10. 실축과 중공축의 강도비 ·····························172
11. 위험속도(Critical Speed) 회전 축의 처짐 발생으로 인한 진동 ⇒
공진 ·············································172
계 산 문 제 ···········································178
기출 및 예상문제 ······································183

CHAPTER 09 축이음(shaft coupling)-191
1. 축이음(shaft coupling)의 개요··························191
2. 커플링(coupling) 분류································191
3. 클러치(clutch) ······································201
계 산 문 제 ···········································213
기출 및 예상문제 ·······································216

CHAPTER 10 베어링(BEARING)-225
1. 베어링(bearing) 개요 ································225
2. 베어링의 종류······································226
3. 미끄럼 베어링(슬라이딩 베어링, 베어링메탈) ···············227
4. 미끄럼 베어링의 윤활·································231
5. 구름베어링 ········································233
6. 미끄럼베어링과 구름베어링의 장단점 ···················237
7. 구름베어링의 호칭치수 ·······························238
8. 구름베어링 수명 계산································239
계 산 문 제 ···········································247
기출 및 예상문제 ·······································251

CHAPTER 11 마찰 전동장치(Friction Gearing)-261
1. 마찰 전동장치(Friction Gearing)의 개요·················· 261
2. 마찰차의 종류 ······································262
3. 원통마찰차(평마찰차) ·································262
4. 홈마찰차(grooved frection wheel) ······················264
5. 원추 마찰차(cone frection wheel) ······················267
6. 무단변속 마찰차·····································269
계 산 문 제 ···········································271
기출 및 예상문제 ······································274

CHAPTER 12 벨트 전동장치 -279
1. 벨트전동장치 개요···································279
2. 평벨트 (flat belt) ····································279
3. V벨트(V-BELT) ·····································290
4. 타이밍 벨트(Timing Belt) ·····························300
계 산 문 제 ··········································303
기출 및 예상문제 ·····································308

CHAPTER 13 체인 전동장치(Chain Driver)-315
1. 체인 전동장치(Chain Driver)의 개요·····················315
2. 체인의 특성········································315
3. 체인의 종류 ·······································316
4. 롤러 체인(roller chain) ·······························317
5. 스프로킷(재질 SM45C 열처리 경도값 HRc 45정도) ········ 322
6. 사일런트 체인(silent chain) ···························323
7. 로프 전동장치······································324
계 산 문 제 ··········································339
기출 및 예상문제 ·····································342

CHAPTER 14 기어 전동장치(Gear Driver)-345
1. 기어의 정의········································345
2. 기어의 종류 ·······································346
3. 기어의 각부 명칭····································351
4. 기어의 치형 곡선····································352
5. 스퍼어 기어 설계 ···································354
6. 표준기어와 전위기어 ·································357
7. 치형의 간섭과 언더컷 ································359
8. 헬리컬 기어와 산형 기어개요···························361
9. 헬리컬 기어의 특성 ··································361
10. 헬리컬기어의 치형방식·······························362
11. 헬리컬기어 주요 치수································363
12. 기어의 강도 계산 (spur gear & helical gear) ············364
13. 이(tooth)의 전달동력 ··········369
14. 워엄 및 워엄휠(Worm & Worm Wheel) ·················369
15. 웜기어(worm gear)의 특징 ··························370
16. 베벨기어(bevel gear ) ······························372
17. 기어열(gear train) ··································375
계 산 문 제 ··········································380
기출 및 예상문제 ······································386

CHAPTER 15 제동장치(Brake)-397
1. 브레이크의 개요 ····································397
2. 제동장치의 제동력과 종류 ····························397
3. 블록 브레이크 ·····································398
4. 내확 브레이크(드럼 브레이크) ··························402
5. 디스크 브레이크(disk brake) ··························404
6. 밴드 브레이크(띠 브레이크) ····························405
7. 자동하중브레이크 ···································407
계 산 문 제 ···········································411
기출 및 예상문제 ·······································415

CHAPTER 16 캠(CAM)-419
1. 캠의 개요··········································419
2. 캠의 종류··········································420
3. 캠의 각 부분의 이름과 캠선도··························422
4. 캠선도············································422
5. 캠의 설계··········································424
기출 및 예상문제 ······································426

CHAPTER 17 스프링(Spring)-429
1. 스프링의 개요·······································429
2. 스프링의 용도······································429
3. 형상에 의한 분류····································430
4. 재료에 따른 분류····································437
5. 코일스프링 설계·····································437
6. 토션바 스프링 ·····································440
계 산 문 제 ···········································442
기출 및 예상문제 ······································446

CHAPTER 18 관계요소-451
1. 개요··············································451
2. 금속관의 종류·······································451
3. 관이음············································454
4. 밸브종류 및 콕······································459
5. 관의 설계··········································462
6. 밸브의 재료········································464
7. 밸브의 규격········································464
계 산 문 제 ··········································466
기출 및 예상문제 ······································468