표제지
목차
Abstract 9
제1장 서론 12
1.1. 연구배경 12
1.2. 연구동향 13
1.3. 연구내용 및 구성 14
제2장 소형선박 유지·보수용 플로팅 도크시스템 설계 15
2.1. 소형 선박·유지·보수용 인양설비 종류 및 특징 15
2.2. 플로팅 도크시스템 개념설계 16
2.3. 부력탱크의 부력 및 폭 계산 18
2.4. 플로팅 도크시스템 개념 설계 21
2.5. 부력 탱크 형상 분석 22
2.6. 부력탱크 최적용량 규모산정 28
2.7. 프레임 개념설계 30
제3장 플로팅 도크시스템 구조 해석 34
3.1. 플로팅 도크시스템 프레임 구조 해석 34
3.2. 프레임의 구조 해석결과 37
3.3. 구조 보강후 프레임의 해석결과 45
3.4. 플로팅 도크시스템 부력탱크 구조 해석 51
제4장 플로팅 도크시스템 모형실험 54
4.1. 실험 조건 54
4.2. 모형시험 장치 55
4.3. 실험 방법 56
4.4. 모형실험 분석 및 고찰 58
제5장 플로팅 도크시스템 해상실험 61
5.1. 부력탱크 제작 61
5.2. 플로팅 도크시스템 프레임 제작 64
5.3. 프레임 및 부력탱크 결합 68
5.4. 해상 실험 71
5.5. 해상시험 결과 77
제6장 결론 79
참고문헌 80
Table 2.1. The main principal items range of the fishing boat less than the G/T 6tone. 17
Table 2.2. The floating dock system and maintenance boat outline scale. 17
Table 2.3. The fluid mechanical check of buoyancy tank shape type "I" 23
Table 2.4. The fluid mechanical check of buoyancy tank shape type "II" 25
Table 2.5. The fluid mechanical check of buoyancy tank shape type "III" 27
Table 2.6. The displacement calculation comparative table 28
Table 3.1. Steel pipes characteristics of frame 35
Table 3.2. The material properties of the steel pipe 35
Table 3.3. Frame boundary conditions 36
Table 3.4. Case analysis result of the frame 37
Table 3.5. Frame boundary condition 45
Table 3.6. Result of calculation type 46
Table 3.7. FRP material properties 52
Table 4.1. The main specifications of the target model floating dock system 54
Table 4.2. Floating dock system, model test results table 57
Table 5.1. Sea trial test condition 71
Table 5.2. Result of sea trial test 72
Table 5.3. Result of floating dock system 78
Fig. 2.1. The floating dock conceptual design. 21
Fig. 2.2. The buoyancy tank shape type "I" 22
Fig. 2.3. type "I" volume displacement 22
Fig. 2.4. The buoyancy tank shape type "II" 24
Fig. 2.5. Type "II" Volume displacement 25
Fig. 2.6. The buoyancy tank shape type "III" 26
Fig. 2.7. Type "III" volume displacement 27
Fig. 2.8. The final floating dock system 29
Fig. 2.9. Buoyancy tank 3D view 33
Fig. 3.1. FEM analysis frame model 34
Fig. 3.2. Constraints and the applied load frame section 36
Fig. 3.3. Point of maximum displacement 37
Fig. 3.4. The results of stress analysis 38
Fig. 3.5. Displacement analysis (20.13mm) 39
Fig. 3.6. The results of stress analysis 40
Fig. 3.7. Displacement analysis (20.16mm) 40
Fig. 3.8. The results of stress analysis 41
Fig. 3.9. Displacement analysis (20.14mm) 42
Fig. 3.10. The results of stress analysis 42
Fig. 3.11. Displacement analysis (20.16mm) 43
Fig. 3.12. The results of stress analysis 44
Fig. 3.13. Displacement analysis (20.16mm) 44
Fig. 3.14. Additional reinforcement frame 45
Fig. 3.15. Floating dock frame 46
Fig. 3.16. The results of stress analysis 47
Fig. 3.17. Displacement analysis (4.87mm) 48
Fig. 3.18. The results of stress analysis 48
Fig. 3.19. Displacement analysis (4.80mm) 49
Fig. 3.20. The results of stress analysis 49
Fig. 3.21. Displacement analysis (6.69mm) 50
Fig. 3.22. Finite Element Method (FEM) model for analysis constraints and the applied load 51
Fig. 3.23. The results of stress analysis 53
Fig. 3.24. Displacement analysis (0.005mm) 53
Fig. 4.1. Model tested models 55
Fig. 4.2. Model test facility 55
Fig. 4.3. The daft result of the calculation 58
Fig. 4.4. The draft results of model tests 58
Fig. 4.5. The draft of ship grounding 59
Fig. 4.6. Model test results by self weight 59
Fig. 4.7. Draft of model test 60
Fig. 4.8. Shape of model test 60
Fig. 5.1. Buoyancy tank production process 62
Fig. 5.2. Forming of buoyancy tank 63
Fig. 5.3. Cutting and laminated 63
Fig. 5.4. Drawings of frame parts 64
Fig. 5.5. Raw material for frame 65
Fig. 5.6. Flange & steel bolt for assemble frame 66
Fig. 5.7. Temporary assembly before painting 67
Fig. 5.8. Finished frame painting 68
Fig. 5.9. Assemble frame and buoyancy tank 68
Fig. 5.10. Timber top assembly work 69
Fig. 5.11. Top of the guard rail and wire work 70
Fig. 5.12. Pipe work and pump installation is complete 70
Fig. 5.13. Result of model test 73
Fig. 5.14. Result of sea trial test 73
Fig. 5.15. Sea trial test of model ship 74
Fig. 5.16. Before the test 74
Fig. 5.17. Fill the buoyancy tank 75
Fig. 5.18. Target vessel entry 75
Fig. 5.19. Drain the buoyancy tank 76
Fig. 5.20. Target vessel departure 76
Fig. 5.21. Compare draft 77
Fig. 5.22. The draft results of model tests and sea trial test 78