Study on the Ship's Collision based on the Real Accident of the Ro-Ro Passenger
- Abstract
- Study on the Ship’s Collision based on the
Real Accident of the Ro-Ro Passenger
Aditya Rio Prabowo
Department of Naval Architecture and Marine Systems Engineering,
The Graduate School, Pukyong National University
Department of Mechanical Engineering,
The Master Program of Mechanical Engineering, Diponegoro University
Abstract
The ship collision phenomenon is studied in present thesis. Internal energy, collision force and structural damage are determined in following chapters. The virtual simulation on ship collision are categorized into two main groups: the investigation of real ship collision accident and the collision location study for predicted collision scenario. In these simulations, finite element method is deployed to produce virtual data of energy, force and damage. In later stage it will be verified with damage from real collision accident in term of damage pattern and empirical formula for internal energy verification. The previous research in ship collision area and theoretical literature are also taken as verification tools.
The investigation of ship collision accident is taking real ship collision case as observation object and later will be modelled and defined in virtual simulation. This investigation is performed to acquire reliable and verified assessment procedure of real collision accident as well as configuration and setting for other virtual simulations. The damage from real collision accident will be used to compare the damage from virtual simulations and several empirical formula is deployed to verify the internal energy.
A study on ship collision accounting for collision location is performed in later stage in order to obtain the characteristic of ship structure response against side collision. Several proposed scenarios based on impact point location are studied in this part. Direct collision to frame and space between two frames are the main focus of this study. In the end of this study, the characteristic of hull structure response and the effect of framing pattern on side hull region against side collision phenomenon are acquired. The results of this study is validated by previous work in ship collision of other researcher and the ship strength analysis theory.
Finally, through the series of investigation and study on real collision accident, besides the verified procedure to assess the ship collision accident, the recommendation of scenario that produced critical and acceptable damage are acquired. These scenarios can be considered as alternative solution to reduce the casualties and damage both on ship structure and cargo of passenger. The possibility of human life losses as the effect of accident are expected can be reduced by these recommendations.
Keywords: Assessment procedure; Collision scenario; Finite Element Method (FEM); Real ship collision accident; Structural damage.
- Issued Date
- 2016
- Awarded Date
- 2016. 2
- Type
- Dissertation
- Keyword
- Assessment procedure Collision scenario Finite Element Method (FEM) Real ship collision accident Structural damage
- Publisher
- 부경대학교 대학원
- Affiliation
- 부경대학교 대학원
- Department
- 대학원 조선해양시스템공학과
- Advisor
- 배동명
- Table Of Contents
- Title Page
Signature Page
Contents i
List of Figures iv
List of Tables viii
Abstract ix
I. Introduction 1
1. Background 1
2. Objective of Research 3
3. Contribution of Research 4
4. Outline of Thesis 5
II. The Theory and Characteristic of Ship Collision 7
1. Introduction 7
2. Literature Review 7
3. History of Ship Collision 14
3.1 Accident Case 14
3.2 Development on Investigation Method 17
3.2.1 Empirical Methods 18
3.2.2 Experimental Methods 21
3.2.3 Simplified Analytical Methods 27
3.2.4 Finite Element Methods 30
4. External Dynamics of Ship Collision 32
5. Internal Mechanics of Ship Collision 34
5.1 Collision Scenarios and Assumed Striking Bow 34
5.1.1 Collision Scenarios and Penetration Direction 34
5.1.2 Assumed Striking Bows 36
III. Finite Element Approach on Collision Investigation 39
1. Introduction 39
2. Physical Data 39
2.1 The Collision Accident Case 39
2.2 Testing of Ship Material 41
3. Virtual Parameter 42
3.1 Method of Virtual Experiment 43
3.2 Algorithm Type 44
3.3 Element Formulation Type 45
3.4 Applied Mesh on Ship Structures 48
3.5 Definition of Material Model 49
3.6 Strain Rate Sensitivity 50
3.7 Definition of Rupture 52
3.8 Study on Friction Coefficient 55
IV. The Investigation on Ship Collision Accident 57
1. Introduction 57
2. Collision Investigation Procedure 57
3. Experiment Result and Verification 61
4. Initial Conclusion from Accident Investigation 65
V. A Study Accounting for Collision Location 66
1. Introduction 66
2. FE Procedure for Collision Location Study 66
3. Experiment Result and Discussion 69
3.1 The Collisions on Forepeak 69
3.2 The Collisions on Midship 72
3.2.1 Midship Region I 72
3.2.2 Midship Region II 75
3.2.3 Midship Region III 78
3.3 The Collisions on Afterpeak 81
3.3.1 Afterpeak Region I 81
3.3.2 Afterpeak Region II 83
3.4 The Collision on Space between Two Frames 86
3.4.1 Space between Main Frames 86
3.4.2 Space between Main and Web Frame 89
3.5 The Overall Result for The Collisions based on Region 92
VI. Conclusions 103
1. Final Remarks 103
2. Recommendation for Further Work 104
Appendix A. Material Testing Report 106
Appendix B. Profile Construction of the Struck Ship 119
국 문 요 약 126
References 128
Acknowledgements 133
- Degree
- Master
- Appears in Collections:
- 대학원 > 조선해양시스템공학과
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